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Growing Black Walnut Trees

Updated on August 9, 2012

Walnut Tree Description

The walnut tree is really a huge, handsome, long-lived deciduous tree which grows gradually to about 15m tall and it is wide-spreading. Walnut tree could be the typical name for greater than twenty species of deciduous trees in the walnut household, Juglandaceae. The fruit has an outer leathery husk and an inner hard and furrowed stone, or nut.

Walnut tree and fruits
Walnut tree and fruits

Walnut Tree and Fruits

Walnut trees are grown from specially selected cultivars grafted onto a robust root stock (commonly American Black Walnut or a walnut hybrid). Though some isolated walnut tree grown from seed may develop satisfactory crops walnut tree grown from seed typically produce walnut tree with only some walnuts worth collecting. As with other fruiting trees, including apples, the extremely rare variant might generate a "Granny Smith", but don't count on it. It's a waste of time trying to propagate from fresh walnuts. Couple of will germinate and, if they do, the progeny are unlikely to develop usable nuts, something you'll find out too late some years just after planting. You can use walnuts to make a great walnut potica.

Walnut Tree
Walnut Tree

Wellwood Walnut Tree

The walnut tree is effectively suited to cold climates. It can be slow expanding, with greatest benefits achieved on deep soils with very good drainage. For these factors we positioned Wellwood orchard at Wallace, Victoria, Australia. We planted an assortment of walnut cultivars (Amigo, Black walnut (j. Nigra), Chandler, Chico, Franquette, Gusenheim, Howard, Mayette, Serr, Vina, Wilson's Wonder and Wybolena) partly for the reason that cross-pollination was said to provide a heavier nut set and partly simply because we didn't know which varieties would do well in the area. From the outset we practiced organic solutions but sought natural certification only a few years ago. Practically twenty years down the track we're pleased using the top quality of the walnuts and the improvement of the majority of walnut tree.

Value Added Walnut Tree

It is actually difficult to place a monetary worth around the numerous essential services that walnut tree give. However, the California Department of Forestry and Fire Protection calculated that a single tree that lives for fifty many years will contribute service really worth almost $200,000 (in 1994 US dollars) to the neighborhood all through its lifetime. This involves:

- supplying oxygen ($31,250),

- recycling water and regulating humidity ($37,000),

- controlling air pollution ($62,500),

- making protein ($2,500),

- offering shelter for wildlife ($31,250) and

- controlling land erosion and fertilizing the soil ($31,250).

Walnuts
Walnuts

Walnut Tree and Stress

Scientists have discovered that walnut tree respond to strain in their surroundings by producing a chemical kind of aspirin. Significant quantities from the aspirin is usually observed inside the air close to walnut tree in occasions of drought or unusual temperatures. The chemical aspirin was observed by accident when scientists in Davis, California, set up instruments in a walnut grove to study volatile natural compounds. They observed atmospheric increases in levels of aspirin through a time once the grove knowledgeable unusually cool nights and hot days. The aspirin not simply assists the tree recover and prevent disease, it's a communication tool to warn other plants of environmental dangers.

Plant Your Own Walnut Tree - Have a clean and friendly air in your garden!

Walnut Tree Pollination

Walnut trees are pollinated by the wind, not by bees or other insects.

All walnut trees are monoecious, that is definitely bearing male and female reproductive organs on separate flowers on the very same tree. Catkins (male inflorescences) are borne laterally on 1-yr wood, and pistillate flowers of walnut tree are borne terminally or laterally on existing season's wood in spikes of normally 2-3 flowers.

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    • profile image

      jimmyworldstar 5 years ago

      Wow walnut trees are huge! Before the walnuts come into full blossom it looks like they could be miniature cantaloupes!

    • lesliesinclair profile image

      lesliesinclair 5 years ago

      This is very interesting. I did not realize that walnut trees like cool weather homes. Lovely photographs too.

    • darciefrench lm profile image

      darciefrench lm 5 years ago

      Lovely tribute to the walnut tree, many thanks for sharing

    • autofanatic profile image

      autofanatic 5 years ago

      We had a black walnut tree in our backyard when I was growing up. Wonderful trees for climbing and shade. It produced more nuts than you knew what to do with, which was fine with the neighbors!

    • profile image

      anonymous 5 years ago

      sister in law has a huge walnut tree in their backyard, about a month ago we got two bags of them and our family cracked them all on a Sunday night. squidliked this!

    • KristijanSenjko profile image

      KristijanSenjko 5 years ago

      Really interesting tree .

    • profile image

      anonymous 5 years ago

      How fascinating, the walnut tree's ability to protect itself with its own aspirin is amazing!