Looks like fert burn. Too little soil there. Are you sure you've had them growing for over a month now? Very slow, if that's the timeframe.
polishpollack Reviewed by polishpollack on . seedlings are not looking good at all, yellow bottom leaves, help! Hi, we have sown Top44 seeds on 12 February and soon had some lovely little seedlings. When big enough we transplanted them to turf pots, filled with John Innes No1. We didnt start feeding straight away, since acc. to the pack the compost should have enough nutrients for at least a week.Soon after though, the bottom leaves (not the cotylydons) of 2 of the 4 seedlings started to yellow, then curled up and browned. Looking at another forum it said to feed with an Epsom salt solution which we Rating: 5