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
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