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Vegetable Gardening: Black Walnut shavings and lumber

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Forum: Vegetable GardeningReplies: 6, Views: 53
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Spring City, TN

May 1, 2013
10:33 AM

Post #9504196

I've been offered black walnut planer shavings to mulch my vegetable beds AND some scrap black walnut lumber to build raised flower beds.

I know that planting under black walnut trees is a problem. But what specifically is the problem? The leaves? Something in the soil because of the walnuts themselves? All I can find on the net is don't plant under the trees... not WHY?


Clarksville, TN
(Zone 7a)

May 1, 2013
10:47 AM

Post #9504209

This might help:
Spring City, TN

May 1, 2013
11:13 AM

Post #9504243

THANKS, just what I was looking for...


Clarksville, TN
(Zone 7a)

May 1, 2013
3:12 PM

Post #9504498

You're welcome. We have Black Walnut trees all around here. Many times the squirrels "hide" them in my planters and I have to dig out many newly sprouted little trees every year. But the nuts are good. :)

Warrenton, VA

May 1, 2013
3:54 PM

Post #9504536

Do NOT, and I repeat, do NOT, get anything from a Black Walnut tree near horses. They cannot even walk on shavings - it poisons them quickly (goes right through the hooves).


Magnolia, TX
(Zone 8b)

May 4, 2013
2:33 PM

Post #9508099

Oak also poison to horses tho slower
Cherry Grove, OH
(Zone 6b)

May 12, 2013
12:03 PM

Post #9517984

Black walnut is negatively alleopathic with some plants. Nightshades (potatoes, tomatoes, peppers, eggplant, etc) and Brassicas are said to be particularly susceptible to the chemical (5 hydroxy-1, 4-napthoquinone) released by the walnut. Other plants are more tolerant of the chemical, but in my experience most have some negative effects from black walnut.

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