Going Crispy

[tamsin]

I have a melon and a pea getting crispy leaves, one leaf at a time from the bottom up. The edge of the leaf goes crispy, then gradually the whole leaf. Then the next leaf up starts doing the same. The rest of the plant looks totally healthy and is growing well (new leaves come through fine). There are no visible bugs.

They are both in sunny spots indoors but not next to each other. I know it's too early for melon and weird to have a pea inside but other than the odd crispness they seem to be doing fine. Any ideas before I end up with very tall stalks with just leaves at the top?

Tamsin

[snohare]

Leaves grow old and die, they are considered disposable by most plants. If the seedlings are doing well enough, they will concentrate on feeding nutrients to the top ones, and neglect the less effective lower ones. Each leaf will usually be bigger and better than the last. It's perfectly natural, not usually anything to worry about if everything else is fine.

[bazzaboy]

I'm guessing Tamsin, but presumably something's warmer/drier than ideal... If you have a soil thermometer it might be worth checking the roots are not getting too warm (even on a hot summer's day roots will be cool a few inches under the surface); also indoor humidity is way less than outdoors, particularly with central heating, so might it be useful to check and alter that aspect to see if any improvement? b.