lettuce problems

[chilli_grower]

My lettuce have been doing very well, until I noticed this discolouration on the edges of some leaves

Any ideas what the cause could be?

Cheers

[Jamesy_uk]

Looks like it got lightly frosted to me but I may be wrong.

P.S - I looked out on Sunday and the whole garden was white at 5am, by 6.30am all the frost had gone so it may have come and gone before you saw it.

[rustylady]

Looks like they're indoors (? greenhouse). Probably too hot, and there looks to be a lot of water. Lettuce need cooler temperatures and lots of fresh air.

[chilli_grower]

they are outside, on the edge of the greenhouse. no frosts here at all!!!! But still very cold at night.

[Potstubsdustbins]

Looks like to much water to me, your compost looks very wet.

Potty

[chilli_grower]

i think you were right. As I just got home, the compost/soil has dried out a fair bit, and the lettuces are now back to looking normal!

Those marks around the edges have gone!

[Potstubsdustbins]

Nice one,

Potty

[chilli_grower]

ok, I have not watered at all since lat night. And I just checked them again, and the same thing has happened!

So I would say the morning damp air is somehow getting into the leaf edges, and then drying out as the day heats up...