Showing posts with label Canopy. Show all posts
Showing posts with label Canopy. Show all posts

Monday, March 18, 2013

Permaculture Plants: Asian Pears

The Asian Pear is quite different than its European relative.

Common Name: Asian Pears
Scientific Name: Pyrus species
Family: Rosaceae (the Rose family)

Asian Pears can be russeted and light brown or clear and yellow.


Common Species:
  • Chinese Pear, Nashi Pear, Sand Pear (Pyrus pyrifolia)
  • Siberian Pear, Harbin Pear (Pyrus ussuriensis)
  • Chinese White Pear, Ya Pear (Pyrus x bretschneideris)

Description:
Asian Pears are not nearly as common in the West as their closely related cousin, the European Pear, but they are quickly gaining in popularity. They ­are typically round (apple-shaped), although the Chinese White Pear is more “pear”-shaped.  Asian Pears are more similar to an apple in texture and a cross between an apple and European Pear in flavor. They are at their best when picked ripe. All you need is to taste a perfectly ripe Asian Pear, and you will make room for it in your Forest Garden.

There are three types of Asian pears.

  • Round or roundish-flat fruit with green to yellow skin
  • Round or roundish-flat fruit with yellow to brown skin and bronze to gold russet (little dots)
  • Pear-shaped with green skin or brown skin and bronze russet 


History:
Native to the eastern Asia, specifically China, Korea, and Japan, Asian Pears are now grown throughout their native land as well as in Australia, New Zealand, and the United States.

Trivia:
  • Asian Pears are the oldest known cultivated pear.
  • Asian Pears contain enzymes that tenderize meat, which is why they are used in marinades.

Fall Fruit Salad with Asian Pears

Asian Pear and Tangerine Salad

Asian Pear Wine and Liquors by Subarashi Kudamono (means "wonderful fruit" in Japanese)

USING THIS PLANT
Primary Uses:
  • Fresh eating – Asian Pears are more similar to an Apple in texture and a cross between an Apple and European Pear in flavor. Eat when fully ripe or it will be dry and hard. Great in salads.
  • Cooking – Asian Pears have a high water content, so they are not used identical to European Pears. They are great when used for marinating (see trivia below). Drier varieties may be used for cooking, baking, pies, tarts, etc., but they really are best cooked after they have been pureed. The crisp texture is not softened with cooking as with European Pears.
  • Sauces – In Asia, the pears are often ground and mixed into sauces instead of other sweeteners
  • Preserved – Preserves, Jams, Jellies, etc – will often need longer cooking times to reduce the high water content. Asian Pears dehydrate very well, and the dehydrated fruit can be used in many recipes for desserts or just eaten as is.

Secondary Uses:
  • General insect (especially bees) nectar and pollen plant
  • Wildlife food
  • Wildlife shelter
  • Primary or adjunt flavor component in beer, wine, cider, perry, mead, liquor, etc.
  • Can likely be Coppiced, although I can find no good reference for this.
  • Wood – Poles, posts, stakes, tools, crafts
  • Wood – Firewood, charcoal
  • Wood – Smoking/Barbeque: pear wood gives a soft “fruity” smoke to meats, similar to apple wood

Yield: Standard root stock – 3-8 bushels (105-280 liters) or 170-450 lbs (80-200 kg); semi-dwarf root stock – 1-2 bushels (35-70 liters); dwarf root stock – 1 bushel (35 liters) or 56 lbs (25 kg)

Harvesting: Late Summer to Autumn (August-October), but can vary based on variety and location. Pick when still crunchy (like an apple) and giving off a strong aroma – the strong and sweet fragrance of a ripe Asian Pear is the key to knowing when it is ripe. Softness is used to help determine ripeness in European Pears, but not Asian Pears.

Storage: Best when used right away, but can be stored for up to a month or more if kept in a cool, dry place and handled carefully to prevent bruising

Asian Pears will be covered in the beautiful flowers every Spring.
'Large Korean' variety of Chinese Pear (Pyrus pyrifoliaI)

Siberian Pear (Pyrus ussuriensis)

Siberian Pear (Pyrus ussuriensis)

DESIGNING WITH THIS PLANT
USDA Hardiness Zone: Zone 4-9, but really depends on the species and variety
AHS Heat Zone: Zone 9-3, but really depends on the species and variety
Chill Requirement: 300-750 chilling hours/units depening on the variety

Plant Type: Small to Medium-sized Tree depending on the root stock
Leaf Type: Deciduous
Forest Garden Use: Canopy Layer, Sub-Canopy (Understory) Layer
Cultivars/Varieties: Many varieties available. (see my article about Asian Pear varieties)

Pollination: Asian Pears traditionally require cross-pollination, although a few varieties are self-fruitful. This requires two different varieties of Asian Pear. Some European Pears (Pyrus communis) will cross-pollinate Asian Pears. Because there is such a wide variety of pears and cross-pollination variations, it is best to get cross-pollination information from the nursery or catalog company you are purchasing your pears. Pollinated by insects.
Flowering: Spring (May)

Life Span:
Years to Begin Bearing: 3-7 years depending on the variety and rootstock
Years of Useful Life: up to 300 years. Dwarfing rootstocks live shorter lives

Siberian Pear (Pyrus ussuriensis) in Autumn
Chinese Pear (Pyrus pyrifolia) in Autumn waiting for harvest

Asian Pear in Autumn after a frost

PHYSICAL CHARACTERISTICS OF THIS PLANT
Size:
  • Chinese Pear (Pyrus pyrifolia): 25-30 feet (7.5-9 meters) tall and 20-25 feet (6-7.5 meters) wide
  • Siberian Pear (Pyrus ussuriensis): 30-50 feet (9-15 meters) tall and 25-30 feet (7.5-9 meters) wide
  • Chinese White Pear (Pyrus x bretschneideris): 20-25 feet (6-7.5 meters) tall and 10-20 feet (3-6 meters) wide

Roots: Fibrous
Growth Rate: Medium


Harvesting a large Asian Pear at Virginia Gold Orchards



GROWING CONDITIONS FOR THIS PLANT
Light: Prefers full sun
Shade: Tolerates very little shade… shade is best avoided with pears
Moisture: Medium soil moisture preferred
pH: most species prefer fairly neutral soil (6.0-7.5), but many can tolerate a bit wider pH ranges

Special Considerations for Growing:
  • Pears to not tolerate juglone (natural growth inhibitor produced by Black Walnut and its relatives). Make sure you have other varieties of  trees and shrubs as a buffer between your walnuts and pears.
  • Pears are susceptible to Fire Blight, Pear Scab, and Canker, so try to choose varieties that are resistant to these diseases.
  • Make sure to consider flowering times when planning which varieties you choose. You need to make sure that you have compatible varieties (i.e. ones that will pollinate each other) flowering at the same time.

Propagation:
Named varieties are usually grafted because pear cultivars do not grow “true to type”, meaning that seeds will grow into trees that produce fruit that is likely to be nothing like the parent stock. If growing from seed, they will need 8-16 weeks cold stratification for germination. Less improved species and non-cultivars are often grown from seed.

Maintenance:
Typically, Asian Pears are pruned once a year to once every 2-3 years.

Concerns:
None

Monday, March 4, 2013

Permaculture Plants: Pecans and Hickory


Pecans... a favorite nut!

Common Name: Pecan and Hickory
Scientific Name: Carya species
Family: Juglandaceae (the Walnut family)

Hickory Nuts

Common Species:
  • Pecan (Carya illinoinensis) – large to very large tree
  • Shellbark Hickory (Carya laciniosa) – large tree
  • Shagbark Hickory (Carya ovata) – large tree
  • Hican (Carya x hybrids) – large to very large tree

Shagbark Hickory (Carya ovata)... Stunning!

Less Common Species:
  • Water Hickory (Carya aquatica) - large tree, used mainly for wood and fuel
  • Chinese Hickory (Carya cathayensis) - large tree, used for nuts, oil (nut), and wood
  • Bitternut Hickory (Carya cordiformis) - large tree, used mainly for wood and fuel
  • Pignut Hickory (Carya glabra) - very large tree, variable flavored nut, used mainly for wood and fuel
  • Mockernut Hickory (Carya tomentosa) - very large tree, good flavored nut but very tough shell, used mainly for wood and fuel 

A majestic Pecan tree

Description:
The Hickories and Pecans are large, slow-growing trees that can take many years to begin bearing. These majestic trees which give us some of the best tasting nuts, fantastic wood wood for smoking meat, and wood that can be used in a variety of ways, should be considered an investment for the future. I hope to enjoy, literally, the fruits of my labor, but I know my children, grandchildren, and maybe even my great-grandchildren will enjoy it as well.

Pecan (Carya illinoinensis) by Charles Sprague Sargent

History:
Native to Asia and North America, Hickories and Pecans have been used for food, wood, and fuel since people have been around to use them. These trees have been developed for larger and sweeter nuts, and the Pecans have had the most development so far.

Trivia:
  • The name “Hickory” comes from the Algonquian Indian (Native American people group) word pawcohiccora, meaning the nut from the Hickory tree.
  • Pecan and Hickory Nuts are not technically nuts… they are considered “drupes” or even "tryma". A drupe is a fruit with a single seed inside. So the “nut” of these plants have a soft fruit that dries and splits to reveal the seed… what we call the nut. A true nut is a fruit which forms a hard shell to cover the seed, and this hard shell (the fruit) does not split open on its own. Confused yet? It may be easiest to call it a nut!
  • “Papershell Pecans” are pecans that have such thin shells that the shell can be cracked by just squeezing together two nuts in your hand… some are so thin, that the shells can be cracked by just squuezing one nut between two fingers. However, these nuts are much more prone to cracking on the tree when the nut swells during heavy rains.
  • Pecans have nuts
  • Shagbark Hickory have nuts about 1.5 inches (4 cm) long
  • Shellbark Hickory have nuts about 2.5 inches (6 cm) long
  • The Hican is a cross between a Pecan (C. illinoinensis) and another Hickory species (Carya species)… so in reality, there are a wide variety of trees appropriately named Hican. Most hybrids have poor nuts, but the named Hicans typically produce very large and tasty nuts; although, they usually produce less nuts than either of its parents.
Pecan Pies would be reason enough to plant these trees.

USING THIS PLANT
Primary Uses:
  • Nut – Raw. Excellent taste in both Pecans and selected Hickories.
  • Nut – Cooked. Used in desserts, breads, baking, etc.
  • Nut – “Milk” can be made from Pecan nuts
  • Nut – Oil. An edible oil can be pressed from Pecans

Secondary Uses:
  • General insect pollen plant – attracts beneficial insects which feed on the pollen of these trees
  • Wildlife food
  • Wildlife shelter
  • Windbreak plant
  • Sap is edible (Hickories) – can be tapped like Maples and reduced (with heat) to make syrup. I have yet to try this syrup, but the reports on flavor I have found range from very good to fair and slightly bitter. Interesting.
  • Coppice Plant
  • Wood used for poles, posts, fence posts, stakes, tool handles (axes!).
  • Wood used for fuel (firewood), charcoal.
  • Wood is a great wood for smoking meats.
  • Dynamic Accumulator – Potassium and Calcium for all species; Phosphorus in Shagbark Hickory (C. ovata)
  • Biomass Plant – large tree with lots of leaf-fall every Autumn that can be left to decompose and build the forest soil, or it can be moved and used in other places or composted.

Yield: 
Highly variable on species and size of the tree. Hickories produce less than Pecans; Improved varieties often produce more than unimproved and wild species, although the hybrid Hican will produce less (but larger) nuts than the Pecan. 50 lbs (23 kg) is not uncommon for a 10-20 year old tree. Pecans can produce up to 100 lbs (46 kg) when they are 20-25 years old. A mature Pecan that is 75 years old or older can produce close to 500 lbs (225 kg) of nuts. There are some Pecans that have yielded over 1,000 lbs (450 kg) of nuts in a season!

Harvesting: Autumn. Although if you have Pecans in more warm locations, you may harvest all the way through January. Pecans and Hickory are typically harvested after they have fallen from the tree; however, some people (and commercial operations) use nets to catch the nuts during harvest season.
Storage: Can be used right away, but if the nuts are dried, they can store for a few years.

The long, thin, green flower clusters ("catkins") of a Pecan tree

DESIGNING WITH THIS PLANT
USDA Hardiness Zone:
  • Pecan (Carya illinoinensis) – Zone 6-9
  • Shellbark Hickory (Carya laciniosa) – Zone 6
  • Shagbark Hickory (Carya ovata) – Zone 4-7
  • Hican (Carya x hybrids) – Zone 5

AHS Heat Zone:
  • Pecan (Carya illinoinensis) – Zone 9-1
  • Shellbark Hickory (Carya laciniosa) – Zone 8-1
  • Shagbark Hickory (Carya ovata) – Zone 8-1

Chill Requirement: 650-1,550 hours/units depending on the species/variety.


Plant Type: Large to very-large Trees
Leaf Type: Deciduous
Forest Garden Use: Canopy Layer
Cultivars/Varieties: A few very worthwhile species. There are quite a few cultivars and hybrids available.

Pollination: Self-Sterile (although a few varieties are self-fertile). Requires cross-pollination by other cultivars for the nuts to be produced. Pollinated by the wind. Trees can be pollinated by the wind carrying pollen from other trees up to 10 miles away!
Flowering: Late Spring to Early Summer.

Life Span:
Years to Begin Bearing: 3-10 years for Pecans (sooner in the south); 40 years for wild Hickories (only 3-7 years if the tree was grafted)
Years Between Major Cropping: 1-2 years
Years of Useful Life: minimim of 100 years, but most will be productive for at least 200 years. It is not uncommon for trees over 400 years old to still produce large yields.

Shagbark Hickory Nuts

How the Shagbark Hickory got its name...

PHYSICAL CHARACTERISTICS OF THIS PLANT
Size:
  • Pecan (Carya illinoinensis) – 75-120 feet (22-36 meters) tall and wide
  • Shellbark Hickory (Carya laciniosa) – 70-85 feet (21-25 meters) tall and 30-50 feet (9-15 meters) wide
  • Shagbark Hickory (Carya ovata) – 70-85 feet (21-25 meters) tall and 30-50 feet (9-15 meters) wide
  • Hican (Carya x hybrids) – 75 feet (22 meters) tall and 50 feet (15 meters) wide

Roots: Single, large taproot
Growth Rate: Slow. Some improved varieties grow at a bit faster rate than the wild species.

Shellbark Hickory (Carya laciniosa)
Check out this site for a great photo resource on Carya species: 

GROWING CONDITIONS FOR THIS PLANT
Light: Full sun
Shade: Some species tolerate light shade; the Shagbark Hickory (C. ovata) can tolerate a bit more shade than the other species. The Pecan (C. illinoinensis) doesn’t like any shade.
Moisture: Medium soil moisture preferred. The Shellbark Hickory (C. laciniosa) can tolerate more wet soils. The Shagbark Hickory (C. ovata) can tolerate some fairly dry periods and doesn’t like wet soils or flooding.
pH: most species prefer fairly neutral to alkaline soil (6.5-8.0)

Special Considerations for Growing:
  • Almost all of these trees are slow growing during their first few years.
  • Most species/varieties require a hot summer to thrive.
  • All species tolerate juglone (natural growth inhibitor produced by Black Walnut and its close relatives… Pecans and Hickories are more distant relatives of the Walnut). Consider using this tree as a buffer between your walnuts and other plantings.

Propagation:
From seed – needs at least 3 months cold stratification to germinate. If starting from seed, make sure to use deep pots to give room for the taproot. Get the seedlings into their permanent spots as soon as possible to avoid damaging or stunting that taproot. Ideally, if you can protect the seeds from mice, the seeds would be planted where you want the trees to grow. Named varieties are available from grafting.

Maintenance:
Very little. Once established, almost none.

Concerns:
Truly none. However, I have my own personal concerns about the grafted varieties. The majority of Pecans are grafted onto only a few rootstocks. Granted, these rootstocks are very hardy and resistant to many diseases, but I don’t like the idea of putting all my eggs in one basket. What if a disease came along that knocked out those few rootstocks? It is highly unlikely, but what if? My goal with my (future) forest garden is not to be a commercial producer of one thing (in this case, Pecans or Hickory Nuts). My goal is to create a bountiful and resiliant ecosystem. So what will that mean in practice? Well, I will certainly have a number of named varieties of Pecans on the standard rootstocks, but I will also likely grow some of my own trees from seed. This may delay the onset of nut production for many years, but I think it is a great legacy to leave. To know I planted something that my children and grandchildren will enjoy, even when I did not, sounds pretty great to me.

Wednesday, February 6, 2013

Permaculture Plants: Oak


The majestic Oak.

Common Name: Oak
Scientific Name: Quercus species
Family: Fagaceae (the Beech family)

Ariundle Oakwood, Scotland.
One of the last surviving old-growth oak forests in the Scottish Highlands.

Common Species:

  • Sawtooth/Sawthorn Oak (Quercus acutissima) - medium-sized tree
  • Encina or California Live Oak (Quercus agrifolia) - medium-sized evergreen tree
  • White Oak (Quercus alba) - large tree
  • Boz-Pimal Oak (Quercus aucheri) - large evergreen shrub
  • Swamp White Oak (Quercus bicolor) - large tree
  • Turkey Oak (Quercus cerris) - large tree
  • Kermes Oak (Quercus coccifera) - medium-sized evergreen shrub
  • Scarlet Oak (Quercus coccinea) - large tree
  • Blue Oak (Quercus douglasii) - medium-sized tree
  • Black Oak (Quercus emoryi) - medium-sized tree
  • Hungarian Oak (Quercus frainetto) - large tree
  • Gambel or Shin Oak (Quercus gambelii) - large shrub
  • Glaucous-Leaf Oak or Japanese Blue Oak (Quercus glauca) - medium-sized evergreen tree
  • Holly Oak (Quercus ilex) - large evergreen tree
  • Holm Oak (Quercus ilex ballota) - large evergreen tree
  • Valonia Oak (Quercus ithaburensis macrolepis) - medium-sized tree
  • Californian Black Oak (Quercus kelloggii) - large tree
  • Bull Oak (Quercus lamellose) - very large evergreen tree
  • Overcup Oak (Quercus lyrata) - large tree
  • Burr Oak (Quercus macrocarpa) - large tree
  • Chinkapin Oak or Yellow Chestnut Oak (Quercus meuhlenbergii) - medium-sized tree
  • Swamp Chestnut Oak (Quercus michauxii) - large tree
  • Mexican Blue Oak (Quercus oblongifolia) - medium-sized evergreen tree
  • Pin Oak (Quercus palustris) - large tree
  • Dwarf Chinkapin Oak (Quercus prinoides) - large shrub
  • Chestnut Oak (Quercus prinus) - large tree
  • English or Pedunculate Oak (Quercus robur) - large tree
  • Red Oak (Quercus rubra) - large tree
  • Post Oak (Quercus stellata) - large tree
  • Cork Oak (Quercus suber) - large tree
  • Live Oak (Quercus virginiana) - large evergreen tree
  • Sierra Live Oak (Quercus wislizeni) - large evergreen tree
  • Compton's Oak (Quercus x hybrid) - large tree
  • Schuette's Oak (Quercus x schuettei) - large tree


Angel Oak Tree, outside of Charleston, South Carolina, is over 1,500 years old.
Live Oak (Quercus virginiana

Description:
The Oaks are a large family of shrubs and trees, about 600 species, which produce acorns. Oak wood is highly valued for everything from timber buildings and furniture to wine/whiskey barrels and shitake mushroom logs. Acorns can be used for making flour or a coffee/tea substitute. The trees themselves are beautiful, large, and long-lived and work great as windbreaks. If you enough space, oaks are a great addition to a Forest Garden.

English or Pedunculate Oak (Quercus robur
Watercolor by Ruth de Monchaux

History:
Native to the northern hemisphere, oaks are found from tropical to cold climates. Oaks have been used for wood and food for thousands of years. Craftsman around the world have used oak wood for centuries. Because of their long lives and strong wood, oaks have been used as national and political symbols, and because of their use is no many areas of life, oaks have been used as religious symbols as well. In more recent times, a number of hybrids and cultivars have been developed for landscaping purposes. Unfortunately, there has not been much development in producing acorns with less tannin.

Trivia:

  • Oak trees can be deciduous or evergreen (a.k.a. "Live Oaks")
  • Oaks produce fruit as a nut called an acorn. The nut contains the seed. The "cap" of the acorn is called a "cupule".
  • The fruit of nut trees, like acorns, are generally referred to a "mast".
  • Most acorns have high amounts of tannin, which eaten in large doses, can be toxic to certain animals, namely horses, cattle, and sheep. Pigs, which in certain locations feed on large amounts of Autumn acorns, can have some issues with the toxins, but this is much less common.
  • The primary source of corks for wine bottles and other uses comes from the
  • Cork Oak (Quercus suber). Cork is considered a renewable resource, since
  • harvesting the cork (bark) is done in a way which does not harm the tree.


Acorns can feed wildlife, domesticated life, and human life alike.
Red Oak (Quercus rubra
http://img3.etsystatic.com/004/1/6586066/il_fullxfull.382876059_g0w8.jpg

Oak leaf and acorn variety.
5 oak leaves and 6 acorns found by Coniston Water by Eileen Postlethwaite


USING THIS PLANT
Primary Uses:

  • Nut - the "acorn" is typically dried and ground as "meal" or "flour". Only a few species or improved hybrids have seeds that can be eaten raw (Quercus ilex)
  • Oil - only a few species have seeds that can be pressed to expel edible oil (Quercus ilex)
  • Young Leaves - cooked. Only a few oaks (Quercus acutissima) have edible leaves.
  • Coffee - The seed can be roasted and used as a coffee substitute.


Secondary Uses:

  • General insect nectar and pollen plant
  • Wildlife food
  • Wildlife shelter
  • Windbreak
  • Most species can be coppiced - every 7-30 years depending on the size wood desired.
  • Wood is highly prized for finish carpentry, furniture, tools, barrels, crafts, baskets, as well as posts, fencing, stakes, wedges, roof shingles, firewood, and charcoal.
  • Wood and acorn shells can be used for tanning.
  • Wood can be used for mushrooms (shiitake!)


Yield: highly variable on species and size of the tree. For example, Q. acutissima can produce up to 125 lbs (56 kg) of acorns per year.

Harvesting: Autumn (October-November). Acorns are harvested after they have fallen from the tree.
Storage: Can be used right away, but can be stored for months if kept dry.

Beautiful photo of Oak leaves in Autumn
White Oak (Quercus alba)
(http://stillblog.net/?p=1417 ... this is a beautiful blog!)

Oaks are just impressive trees!

DESIGNING WITH THIS PLANT
USDA Hardiness Zone:

  • Sawtooth/Sawthorn Oak (Quercus acutissima) - Zone 5
  • Encina or California Live Oak (Quercus agrifolia) - Zone 8
  • White Oak (Quercus alba) - Zone 4
  • Boz-Pimal Oak (Quercus aucheri) - Zone 8
  • Swamp White Oak (Quercus bicolor) - Zone 4
  • Turkey Oak (Quercus cerris) - Zone 7-9
  • Kermes Oak (Quercus coccifera) - Zone 6
  • Scarlet Oak (Quercus coccinea) - Zone 4
  • Blue Oak (Quercus douglasii) - Zone 7
  • Black Oak (Quercus emoryi) - Zone 7 
  • Hungarian Oak (Quercus frainetto) - Zone 6
  • Gambel or Shin Oak (Quercus gambelii) - Zone 4
  • Glaucous-Leaf Oak or Japanese Blue Oak (Quercus glauca) - Zone 7
  • Holly Oak (Quercus ilex) - Zone 7
  • Holm Oak (Quercus ilex ballota) - Zone 7
  • Valonia Oak (Quercus ithaburensis macrolepis) -Zone 7
  • Californian Black Oak (Quercus kelloggii) - Zone 7-9
  • Bull Oak (Quercus lamellose) - Zone 8
  • Overcup Oak (Quercus lyrata) - Zone 5
  • Burr Oak (Quercus macrocarpa) - Zone 2-8
  • Chinkapin Oak (Quercus meuhlenbergii) - Zone 4
  • Swamp Chestnut Oak (Quercus michauxii) - Zone 6
  • Mexican Blue Oak (Quercus oblongifolia) - Zone 7
  • Pin Oak (Quercus palustris) - Zone 5-8
  • Dwarf Chinkapin Oak (Quercus prinoides) - Zone 5
  • Chestnut Oak (Quercus prinus) - Zone 5
  • English or Pedunculate Oak (Quercus robur) - Zone 4
  • Red Oak (Quercus rubra) - Zone 3
  • Post Oak (Quercus stellata) - Zone 5
  • Cork Oak (Quercus suber) - Zone 7
  • Live Oak (Quercus virginiana) - Zone 7
  • Sierra Live Oak (Quercus wislizeni) - Zone 8


AHS Heat Zone:

  • Sawtooth/Sawthorn Oak (Quercus acutissima) - Zone 8-3
  • Encina or California Live Oak (Quercus agrifolia) - Zone 12-9
  • White Oak (Quercus alba) - Zone 8-1
  • Swamp White Oak (Quercus bicolor) - Zone 8-1
  • Turkey Oak (Quercus cerris) - Zone 8-1
  • Scarlet Oak (Quercus coccinea) - 9-4
  • Blue Oak (Quercus douglasii) - Zone 9-1
  • Glaucous-Leaf Oak or Japanese Blue Oak (Quercus glauca) - Zone 9-4
  • Holly Oak (Quercus ilex) - Zone 9-2
  • Californian Black Oak (Quercus kelloggii) - Zone 9-5
  • Bull Oak (Quercus lamellose) - Zone 8
  • Overcup Oak (Quercus lyrata) - Zone 8-4
  • Burr Oak (Quercus macrocarpa) - Zone 9-1
  • Chinkapin Oak (Quercus meuhlenbergii) - Zone 8-2
  • Swamp Chestnut Oak (Quercus michauxii) - Zone 9-3
  • Pin Oak (Quercus palustris) - Zone 7-3
  • Dwarf Chinkapin Oak (Quercus prinoides) - Zone 8-1
  • Chestnut Oak (Quercus prinus) - Zone 8-1
  • English or Pedunculate Oak (Quercus robur) - Zone 8-3
  • Red Oak (Quercus rubra) - Zone 9-5
  • Post Oak (Quercus stellata) - Zone 9-4
  • Cork Oak (Quercus suber) - Zone 12-3
  • Live Oak (Quercus virginiana) - Zone 11-6
  • Sierra Live Oak (Quercus wislizeni) - 10-6


Chill Requirement: likely, but no reliable information can be found

Plant Type: Medium to large-sized Shrubs; medium to large-sized Trees
Leaf Type: Evergreen or Deciduous depending on the species
Forest Garden Use: Canopy Layer, Sub-Canopy (Understory) Layer, Shrub Layer
Cultivars/Varieties: Many species, hybrids, and varieties available.

Pollination: Oaks require cross-pollination. This can come from just about any other species of oak. Pollinated by the wind.
Flowering: late Spring to mid-Summer

Life Span:
Years to Begin Bearing: 5-35 years depending on the species
Years Between Major Cropping: 1-10 years depending on the species.
Years of Useful Life: 200 years is considered young for most species. Oaks can live to 400 years if not cut down. There is an oak over 2,000 years old in California.

The Pechanga Great Oak, outside of Temecula, California, is over 2,000 years old.
Encina or California Live Oak (Quercus agrifolia)

Oak leaves can be extremely variable. Each species is different.
http://www.hearth.com/talk/threads/oak-tree-down-church-need-id.87993/

PHYSICAL CHARACTERISTICS OF THIS PLANT
Size:

  • Sawtooth/Sawthorn Oak (Quercus acutissima) - 16 feet (5 meters) tall and 49 feet (15 meters) wide
  • Encina or California Live Oak (Quercus agrifolia) - 49 feet (15 meters) tall and 26 feet (8 meters) wide
  • White Oak (Quercus alba) - 65 feet (20 meters) tall and 32 feet (10 meters) wide
  • Boz-Pimal Oak (Quercus aucheri) - 16 feet (5 meters) tall and 13 feet (4 meters) wide
  • Swamp White Oak (Quercus bicolor) - 82 feet (25 meters) tall
  • Turkey Oak (Quercus cerris) - 114 feet tall (35 meters) tall and 82 feet (25 meters) wide
  • Kermes Oak (Quercus coccifera) - 13 feet (4 meters) tall and wide
  • Scarlet Oak (Quercus coccinea) - 82 feet (25 meters) tall and 49 feet (15 meters) wide
  • Blue Oak (Quercus douglasii) - 39 feet (12 meters) tall
  • Black Oak (Quercus emoryi) - 39 feet (12 meters) tall
  • Hungarian Oak (Quercus frainetto) - 98 feet (30 meters) tall
  • Gambel or Shin Oak (Quercus gambelii) - 14 feet (4 meters) tall
  • Glaucous-Leaf Oak or Japanese Blue Oak Oak (Quercus glauca) - 49 feet (15meters) tall
  • Holly Oak (Quercus ilex) - 82 feet (25 meters) tall and 65 feet (20 meters) wide
  • Holm Oak (Quercus ilex ballota) - 82 feet (25 meters) tall and 65 feet (20 meters) wide
  • Valonia Oak (Quercus ithaburensis macrolepis) - 49 feet (15 meters) tall and 42 feet (13 meters) wide
  • Californian Black Oak (Quercus kelloggii) - 82 feet (25 meters) tall
  • Bull Oak (Quercus lamellose) - 115 feet (35 meters) tall
  • Overcup Oak (Quercus lyrata) - 98 feet (30 meters) tall
  • Burr Oak (Quercus macrocarpa) - 75-100 feet (22-30 meters) tall and wide
  • Chinkapin Oak (Quercus meuhlenbergii) - 35-50 feet (10-15 meters) tall and wide
  • Swamp Chestnut Oak (Quercus michauxii) - 75-100 feet (22-30 meters) tall and wide
  • Mexican Blue Oak (Quercus oblongifolia) - 26 feet (8 meters) tall
  • Pin Oak (Quercus palustris) - 82 feet (25 meters) tall
  • Dwarf Chinkapin Oak (Quercus prinoides) - 12 feet (3.5 meters) tall and 12-20 (3.5-6 meters) feet wide
  • Chestnut Oak (Quercus prinus) - 49 feet (15 meters) tall and 75-100 feet(22-30 meters) wide
  • English or Pedunculate Oak (Quercus robur) - 98 feet (30 meters) tall and wide 
  • Red Oak (Quercus rubra) - 82 feet (25 meters) tall and 59 feet (18 meters) wide
  • Post Oak (Quercus stellata) - 65 feet (20 meters) tall and wide
  • Cork Oak (Quercus suber) - 65 feet (20 meters) tall and 49 feet (15 meters) wide
  • Live Oak (Quercus virginiana) - 65 feet (20 meters) tall and wide
  • Sierra Live Oak (Quercus wislizeni) - 65 feet (20 meters) tall and 98 feet (30 meters) wide


Roots: Extremely variable based on the species. Many have taproots, some are heart-shaped root masses, and some are a diffuse, fibrous network.
Growth Rate: Most species grow at a Slow to Medium rate; however, a few species are known to grow fast. Also, many of the hybrids grow at a much faster rate.

Shiitake Mushrooms prefer Oak wood over any other wood.

Oak wood has so many uses!

GROWING CONDITIONS FOR THIS PLANT
Light: Prefers full sun
Shade: Some species tolerate light shade
Moisture: Medium soil moisture preferred, but the "swamp" species (Q. bicolor, Q. michauxii) can handle pretty wet soils as can Q. robur
pH: most species prefer fairly neutral soil (6.0-7.0), and some species (notably Q. macrocarpa) is tolerant of very acidic to very alkaline soils.

Special Considerations for Growing: 
It is likely that all species tolerates juglone (natural growth inhibitor produced by Black Walnut and its relatives). Consider using this tree as a buffer between your walnuts and other plantings.

Propagation: 
Easily from seed. Sow immediately in Autumn after the seeds have fallen from the tree.

Maintenance:
Not much maintenance is needed.

Concerns:
Some people can have seasonal allergies to the pollen.

Thursday, January 31, 2013

Permaculture Plants: Juniper

Junipers are a unique addition to a Forest Garden 
(Juniperus communis)

Common Name: Juniper
Scientific Name: Juniperus species
Family: Cupressaceae (the Cypress family)

Most people associate Junipers with arid climates...
but as long as the soil is well-drained, they can grow in a wide variety of locations.
(Juniperus occidentalis) 

Common Species:
  • Common Juniper (Juniperus communis) - large shrub to small tree
  • Alligator Juniper (Juniperus deppeana) - small to medium-sized tree
  • Syrian Juniper (Juniperus drupacea) - medium-sized tree
  • Creeping Juniper (Juniperus horizontalis) - groundcover
  • One-Seed Juniper (Juniperus monosperma) - medium-sized tree
  • Western Juniper (Juniperus occidentalis) - medium-sized tree
  • Rocky Mountain Juniper (Juniperus scopulorum) - small to medium-sized tree
  • Eastern Juniper or Eastern Redcedar (Juniperus virginiana) - small to medium-sized tree

Junipers are such common landscape plants, we can easily forget they have other uses.

Description:
The Junipers are a group of evergreen plants, from small shrubs to tall trees, well known for their berries which are eaten fresh, used as a spice, and are famously used to give gin its characteristic flavor. Junipers are used around the world for landscaping, and J. virginiana (a.k.a. "red cedar") is used extensively in wood working and is notable for its aroma. These plants can be hedges, windbreaks, groundcovers, and sources for wood, to name but a few of their uses. A versatile plant for the Forest Garden.

Common Juniper (Juniperus communis)

History:
The Junipers are a genus of plants containing between 50-70 species. Native to the northern hemisphere, they are likely the most widespread evergreen plant in the world. Prehistoric people used these shrubs and trees for wood, fuel, and food, and their popularity has never ceased.

Trivia:
  • Juniper "berries" are actually modified cones... yes, like the typical pine cones.
  • Most berries are blue when ripe, but some species produce red to orange berries.
  • Juniper berries are the primary flavoring in gin. The name "gin" comes from the Dutch word for juniper, geniver.
  • Most Junipers have two types of leaves: needle-like on young or new growth, and scaled leaves on older growth.
  • Most Juniper berries take about 18 months to ripen.

Eastern Juniper or Eastern Redcedar has beautiful, highly aromatic wood.
Here is a great article on sawmilling cedar (Juniperus virginiana

Gin gets its distinctive flavor and aroma from Juniper.

USING THIS PLANT
Primary Uses:
  • Berries (modified cones) - Most species not mentioned here (and also the fruit of the Common Juniper, J. communis) have fruits which are too astringent and bitter to eat raw. However, the fruits of the species listed here, especially J. drupacea, can be eaten fresh. The berries are most common dried and then crushed, and are considered a highly regarded spice. A little goes a long way. Used as a flavoring in many vegetable and meat dishes. Also used as a flavoring agent in some beers and, most famously, gin.
  • New Leaf Shoots - used as flavoring and used for tea
  • Seeds - roasted seeds have been used as a coffee substitute (J. communis, J. scopulorum)

Secondary Uses:
  • General insect pollen plant
  • Wildlife food
  • Windbreak
  • Pioneer Species - this is a slow growing species, so it is not ideal for land that we desire to turn into a Forest Garden right away; however, it can be used on the outskirts of these areas that are more "wild", i.e. Zones 3 and 4. If used in a Forest Garden, take into consideration the time it will take to grow.
  • Drought Tolerant Plant
  • Hedge Plant
  • Groundcover - really just the Creeping Juniper (Juniperus horizontalis)
  • Some species have highly aromatic woods (especially Eastern Juniper/Redcedar)
  • Larger species produce great wood for fence posts (especially Eastern Juniper/Redcedar)
  • Wood may also be used for lumber, tools, crafts, firewood, and traditional bows

Yield: 20-25 lbs (9-11 kg)
Harvesting: Autumn (October-November). Berries are picked when they are at about 18 months if the plant is in its native range, some will be ripe at 12 months, but some can take up to 3 years to mature. Berries are ripe when they darken.
Storage: Use fresh berries right away. Dried berries can last for years, but lose potency the longer they are in storage.

Creeping Juniper (Juniperus horizontalis) makes a stunning groundcover in the right setting.

Junipers are hardy, rugged plants.
(Juniperus communis)

DESIGNING WITH THIS PLANT
USDA Hardiness Zone:
  • Common Juniper (Juniperus communis) - Zone 2
  • Alligator Juniper (Juniperus deppeana) - Zone 8
  • Syrian Juniper (Juniperus drupacea) - Zone 7
  • Creeping Juniper (Juniperus horizontalis) - Zone 4
  • One-Seed Juniper (Juniperus monosperma) - Zone 4
  • Western Juniper (Juniperus occidentalis) - Zone 5
  • Rocky Mountain Juniper (Juniperus scopulorum) - Zone 3
  • Eastern Juniper or Eastern Redcedar (Juniperus virginiana) - Zone 4

AHS Heat Zone:
  • Common Juniper (Juniperus communis) - Zone 6-1
  • Creeping Juniper (Juniperus horizontalis) - Zone 9-1
  • Rocky Mountain Juniper (Juniperus scopulorum) - Zone 7-1
  • Eastern Juniper or Eastern Redcedar (Juniperus virginiana) - Zone 9-1

Chill Requirement: no reliable information can be found

Plant Type: Medium to large-sized Shrubs; Small to medium-sized Trees
Leaf Type: Evergreen
Forest Garden Use: Canopy Layer, Sub-Canopy (Understory) Layer, Shrub Layer, Groundcover
Cultivars/Varieties: Many species, hybrids, and varieties available.

Pollination: Plant is dioecious (has male and female plants). Typically one male for up to eight females are used. Pollinated by the wind.
Flowering: Summer

Life Span:
Years to Begin Bearing: 2-3 years
Years of Useful Life: Potential to live over 800 years!

Unripe berries on Eastern Juniper or Eastern Redcedar (Juniperus virginiana)

An awful application, but useful example, of a solid Juniper hedge.

PHYSICAL CHARACTERISTICS OF THIS PLANT
Size: these are average or common sizes; many specimens can get significantly taller under ideal conditions and with advanced age
  • Common Juniper (Juniperus communis) - 30 feet (9 meters) tall and 13 feet (4 meters) wide
  • Alligator Juniper (Juniperus deppeana) - 60 feet (18 meters) tall
  • Syrian Juniper (Juniperus drupacea) - 50 feet (15 meters) tall and 6 feet (2 meters) wide
  • Creeping Juniper (Juniperus horizontalis) - 3 feet (1 meter) tall and 9 feet (3 meters) wide
  • One-Seed Juniper (Juniperus monosperma) - 60 feet (18 meters) tall
  • Western Juniper (Juniperus occidentalis) - 60 feet (18 meters) tall
  • Rocky Mountain Juniper (Juniperus scopulorum) - 32 feet (10 meters) tall and 13 feet (4 meters) wide
  • Eastern Juniper or Eastern Redcedar (Juniperus virginiana): typically 16-66 feet (5-20 meters) tall and 26 feet (8 meters) wide, but can get to 90 feet (27 meters) tall

Roots: Juniperus species can grow deep root systems, often with a tap root. If a deep root system does develop, it will develop a shallower lateral root system as well.
Growth Rate: Slow to Medium

There are a variety of shapes and sizes of Junipers
(Juniperus virginiana)

GROWING CONDITIONS FOR THIS PLANT
Light: Prefers full sun
Shade: Some species tolerate light shade (J. communis) but most do not
Moisture: Medium soil moisture preferred, but these are very resistant to drought
pH: most species prefer fairly neutral to alkaline soil (6.1 - 8.0), but it can grow if very acidic to very alkaline soils.

Special Considerations for Growing:
It is likely that all species tolerates juglone (natural growth inhibitor produced by Black Walnut and its relatives). Consider using this tree as a buffer between your walnuts and other plantings.

Propagation:
Easily from seed. Seeds need about 6 months stratification for germination, which can be slow. Can be grown from cuttings taken in Spring. May develop roots from branches that are buried which can later be divided from the mother plant.

Maintenance:
Weeding around the plant is needed for the first few years in the slower growing species. After that, not much maintenance is needed.

Concerns:
  • Many species are very intolerant to fires... meaning they spread forest fires well. This also means it is a pretty good fuel wood.
  • Some people can have seasonal allergies to the pollen.
  • Some species can spread too easily from seeds (mainly by birds) and can become locally invasive.