onion plant leaves dimpling and bending over - Ask Extension
My onion plants are growing in a little greenhouse but seem to be struggling. Some of the leaves are oddly dimpled, other bend and fall over. I know t...
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onion plant leaves dimpling and bending over #867425
Asked May 07, 2024, 1:25 PM EDT
My onion plants are growing in a little greenhouse but seem to be struggling. Some of the leaves are oddly dimpled, other bend and fall over. I know the temp in the greenhouse fluctuates a lot, sometimes from 40-50 degrees at night and up to 100 degrees mid-day. I have been watering once daily. Can you tell me what might be the problem?
Wayne County Michigan
Expert Response
Hi, thanks for the question.
This appears to be a zinc deficiency. Onions are sensitive to zinc levels. It could be a result of a too high of soil pH. Soils with high organic matter may make a zinc deficiency worse. High phosphorus levels may limit zinc uptake. Cold/wet conditions can make cause zinc deficiencies worse. Managing and adjusting phosphorous levels, zinc levels, and organic matter levels appropriately will help. Check out the following link:
https://www.onionpatch.dixondalefarms.com/essential-nutrients-for-growing-onions/
I hope this is helpful.
