I don't know if this is relevant at all, but hubby bought me some of the expandable coir soil (instead of mulch) and I sprinkled it over the bases of all my tomato plants to keep the weeds out. Later in the season, I became very worried because some of my healthy-looking potato-leaved tomato plants looked as if they had succumbed to herbicide damage. Since we are very rural, back onto a farm and there is a lot of shrubbery around my veggie garden, I looked for possible causes and suspected that it might have been due to the coir. My plants grew out of the distorted leaf stage and were fine.
Linda
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