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Allelopathy in sunchokes?

Adrien Lapointe

steward

Posts: 3723

Location: Kingston, Canada (USDA zone 5a)

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posted 13 years ago

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I heard Paul mention on his podcast that sunchokes might be allelopathic. Did anybody notice such a phenomenon with their sunchokes?

I have a stand at home, but it was kind of in the corner by itself, so I never really noticed detrimental effects on other plants. I will have to pay attention this year as it is getting closer from the veggies.

Matu Collins

Posts: 1947

Location: Southern New England, seaside, avg yearly rainfall 41.91 in, zone 6b

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posted 13 years ago

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I have noticed that they are at least a bit allelopathic.Even the dried stalks seem to inhibit growth of other plants. I am thinking of chopping them up a bit and using them in the garden path this year. Sunflowers are, so it makes sense.

Joseph Lofthouse

author & steward

Posts: 7436

Location: Cache Valley, zone 4b, Irrigated, 9" rain in badlands.

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posted 9 years ago

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Adrien Lapointe wrote:I heard Paul mention on his podcast that sunchokes might be allelopathic. Did anybody notice such a phenomenon with their sunchokes?

They seem to me to supress the growth of annual weed seeds, but not perennial grasses, bindweed, nor thistles.

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