Pruning The Walnut

What is the proper time for pruning the walnut? Is it bad for the tree

to prune during the active season? I have recently acquired a

long-neglected grove in which many large limbs will have to be removed

in order to allow proper methods of cultivation to be practiced, and I

am in doubt as to the wisdom of doing this during the rise of sap.

The best time to remove large limbs to secure rapid growth of bark from

the sides of the cut, is just at the time the sap is rising. There will

be some outflow of sap, but of no particular loss to the tree. As soon

as the large wounds have dried sufficiently, the exposed surface should

be painted to prevent cracking of the wood.

Eastern or California Black Walnuts?

I am told that the Eastern black walnut is a more suitable root for the

low lands in California than the California black. Is this true?

There has been no demonstration that the Eastern black walnut is more

suitable to low moist lands than the California black walnut. Our

grandest California black walnut trees are situated on low moist lands.

Walnut Grove is on the edge of the Sacramento river with immense trees

growing almost on the water's edge. Walnut Creek in Contra Costa county

is also named from large walnut trees on the creek bank land. We have

very few Eastern black walnut trees in California and although they do

show appreciation of moist land, they are not in any respect better than

the Californian.

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