1. Leaking Sap (Walnut Tree)

Asked by Anonymous - April 2, 2011

I recently had my walnut tree pruned professionally and noticed that there is a lot of sap dripping from one of the sawed off branches. Is there anything that I can put on this to stop it from happening, as it is obviously detrimental to the tree and staining it?

Answers
  • Sap flow does not hurt the tree. Some trees have free-flowing sap that “bleeds” after late winter or early spring pruning. Although sap flow is not injurious to trees, it may be upsetting to the homeowner. Pruning in early to midsummer, after the leaves have matured, will prevent unsightly sap flow.

2. Can I Plant Magnolia or Gardenia Close to the Walnut Tree?

Asked by BLUE - April 9, 2011

Can I plant Magnolia or Gardenia close to the walnut tree?

Answers

3. Leaking Tree Sap

Asked by Anonymous - April 23, 2011

In pruning some branches off a large walnut tree, sap is leaking out like a dripping tap. Do I need to worry about this? If so, what do I do?

Answers
  • Sap flow does not hurt the tree. Some trees have free-flowing sap that “bleeds” after late winter or early spring pruning. Pruning in early to midsummer, after the leaves have matured, will prevent unsightly sap flow.

4. Planting Flowers Under Walnut Trees

Asked by Anonymous - April 25, 2011

Is there any truth to the saying that flowers won’t grow under walnut trees? What is your advice?

Answers

5. My Walnut Tree

Asked by abneek - July 22, 2011

My Walnut tree, which is only about 12 year old, is dying on me. There is some black fungus on the walnut and I see some bubble like things on the leaves. Any idea how I can cure that? Thanks a lot.

Answers

6. Toxic Roots of Walnut Trees

Asked by Anonymous - August 17, 2011

I have planted five walnut trees among several pine cone trees in my backyard. The walnut trees are about 2-3 feet high now and growing fast. Will the toxic roots of the walnut trees be detrimental to the pine trees?

Answers

7. Why English Walnut Didn’t Set Fruit

Asked by lcguille - November 20, 2011

15 year old tree-great producer. This year, not a single nut. Any ideas? Thanks

Answers
  • This could have happened for a few reasons.

    First, this tree has both male and female flowers. If the male flowers did not bloom well at the same time as the female flowers, then you would have reduced or even no fruiting.

    A late spring cold snap may also be to blame. The flowers are far more tender than the leaves and branches, so while the tree itself would ahve looked fine, if you got frost after the flowers opened, that would ahve killed them and then you would have no fruit.

    Another possibility is that the tree has passed its fruiting maturity. Trees, like animals, have a life span and a set amount of time it can produce. It is possible that your tree has just gotten too old to produce. But, normally, if this is the case, you would have seen a gradual decline in production over the past few years.

    Poor conditions may also have been to blame. High heat and humidity during pollination can make the pollen sticky and clump up, which makes it difficult for the pollen to get from the male flowers to the female flowers.

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