why are leaves yellow?
The leaves on some of the plants in my vegetable garden are a yellow-green, not deep green like they usually are. Is this because the weather's been unusually cool? Those particularly affected are hot peppers, basil, and calendula. Oddly, the tomato plants are vibrant green, not yellowish. The pepper plants looked that way even before I transplanted them into the garden. so I don't think it's from deficient soil. The soil's usually healthy, anyway, since I follow good organic practices.