Tomato leaves and thier patches? ?

[Madame Mucksprout]

Hi,
I have some tomato plant growing in pots on my window cills. Some of them get to go outside for a few hours each day if its warm enough.

Some of the leaves have started to go really wierd though?
Some leaves are going golden brown / crispy patches and other leaves seem to have dark grey blotches on them?

Ill attach some photographs - any help ony why and what I can do greatfully recieved.
Thankyou.

[Bramble_killer]

I had a few like that and it seems to be a magnesium deficiency. You fix it by watering with epsom salts. I have planted some out into the ground and there are no more new leaves with blotches Thanks to the peeps on here who sorted me out.

The light brown ones appear to be sun scorch, which is what happens when the leaves have water on them when the sun hits them.

How long have they been in those pots? Mine were in there for a long time and started to flower so the pots were too small for them but I lost track of time and hence why they started to go on me

[Madame Mucksprout]

Thankyou Bramble Killer - Ill get some salts tomorow (never knew tomato's got indigestion lol).

They have been in the pots for ages now (I grew them from seed and more germinated than I was expecting). Im trying to find big pots for them - but its taking a while.

You have planted yours outside?? are they strong enough to go outside? ? I thought they had to be kept in a consetrvatory or green house (of which I have neither hence my over-grown window cills).
Can they go straight into my flower bed? its windy out there doyou think they will be ok?
Thanks for your reply.

[Sweepster]

Some tomatoes can be grown outside - it depends which variety they are. If they are suitable for outdoors, it's best to wait until after the last frost date (mine won't be going out until June) and they must be hardened off first - putting them outdoors during the day and bringing them in at night for at least a week. If they are tall-growing, cordon varieties, they will need to be supported with, e.g., canes and string.