looks like fert burn to me too...if they were mine i'd transplant them asap into well draining pots using standard potting soil mixed with cactus soil at 3:1 and put that pre-ferted soil into the rose garden well away from any seedlings...
del... Reviewed by del... on . Bottom Leaves Falling Off, Please Help Please help with my plants, they have gotten sick on me about 5 days ago. The leaves are turning brown from the bottom up, 2 of my plants have lost the first and second set of leaves (from the bottom up). I did some research and thought I was low on P, so I gave them some epson salt and a little bone meal to bump the P. This is the only nuts I have given the plants for they are only 18 days old. Here are some specifics: Soil: 1/2 Scotts Potting Soil .08 .12.08 Nut Levels, 1/4 Perlite, Rating: 5