I've put my sweetcorn seedlings into a raised bed earlier in the week - they're between about 5 and 8" tall. I thought my timing was pretty good given the decent weather but I'm wondering whether night-time temps are still a bit low? Two of the seedlings look like they've had it, another couple have got yellowing/brown around the edges of some leaves.
Any thoughts? I'm wondering whether I should fleece them at night?
I assume it's the cold anyway. Can't really think what else it could be - doesn't look like slugs have got them, for instance.