Will datura poison a garlic bed?

Question

We have Datura plants growing heavily in a bed where garlic was harvested in July. Since mid-July they’ve grown to 3 ft. tall. We are going to pull them up…will they leave any compounds in the soil to harm next year’s garlic?

Answer 1

It might. I found a publication from Purdue that said studies show alkaloids from datura plants were harmful to crops. Allelopathic effects had been reported.

https://www.gardeningknowhow.com/garden-how-to/info/allelopathic-plants.htm

https://hort.purdue.edu/newcrop/CropFactSheets/datura.html