Yes, organic I am fertilizing with a general 5-5-5 fertilizer. I just give a little bit every other week. It's organic stuff from Gardners Supply Co. and says it won't burn. But I don't know if thats sufficient or not? It may not be if I'm overwatering. Anney, the plants are a good 3 to 4 inches tall. I have about 4 to 5 true leaves on each of the plants and the 2 to 3 remaining leaves look green and healthy. But the bottom 2 leaves look wilted and yellow. My Garden Oasis cucumber (1 plant) looks worse than my Diva Cucumbers (2 plants). But all of them have the same problem - they look good except those bottom two leaves. I'm also using Gardner's Supply seed starting trays. They are the foam trays with the wicking mat on the bottom. But I got them into cowpots within a week or two after they sprouted. I admit, I probably started these seedlings too early. I didn't realize that some of these plants would get so big so early. Already made of a note of this for next year. :-) I try and stick my finger in the pots to see if it's moist, but I do it more on the outside of the cowpot instead of the center. After your post, I attempted to stick my finger in the bottom through the tiny hole and it seemed somewhat moist to me. It's a bit deceiving as the top of the soil is very dry. So I think it's fair to assume I may have overwatered them. I did kinda pull one out of the cowpot to see if it's root-bound and it does not appear to be the case just yet. Do you think I should snip off the yellowing leaves or will that not make a difference at this point? I can easily go ahead and start some new seedlings to cover myself. It sounds like you think it will not make it another 3 weeks until it can go outside? Thank you both for your input! Sue

Where in the world are you? What is the soil these are planted in like? Soil pH, nutrient levels, amount of organic matter, drainage, soil life? What has the weather been like? Cooler than average? Warmer than average? What has the pollinator activity been like? kimmq is kimmsr

Why the epsom salts? Potting mix isn't normally low in magnesium and that is the only benefit one gets from E. salts. You don't mention which Dr Earth product you used and they make many but if I recall correctly they are all organic blends. Great for a in ground garden with active soil bacteria but won't work at all well in containers as there is no soil bacteria in potting mix to digest it so the plants can use it. You need to use a water soluble fertilizer of some type, something the plants can actually benefit from quickly. There are many brands available both synthetic and organic. They very likely need a good feeding and if they were like this before you transplanted them then they likely have needed some nutrients or some time. Dave

Brought about by the Sphaerotheca fuliginea and the Erysiphe cichoracearum growths, fine mold shows up as white, fine spots on the leaves. ... Despite the fact that the parasitic spores don't ordinarily influence the cucumbers themselves, the white development keeps daylight from arriving at the foliage.