copper2
Songster
I have a phosphorus problem I think(underside of tomato leaves are purple) and I added bonemeal but that doesn't seem to be helping. Can PH or too much of another nutrient be stopping intake?
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Leaf curling is another sign of phosphorus decency but it means that there in a "different stage" of phosphorus decency.The nights have been warm here except for one of two nights but the tomatoes were showing purple before those couple of cooler nights. I'll have to check if the leaves are curled but if they are what causes it?