tomato refresher please

[Mrs Ava]

Just a quickie (ahem  ;))  a couple of my tom plants have yellowish leaves.  Now, I am not short of a tomato plant or 50, but I don't like to see anything poorly, and don't want this to spread, so why and what can I do to help?  Tomato feed??  Thanks peeps.  ;D

[Mrs Ava]

[campanula]

could they have got a bit chilly - i know that night temps can affect a lot of flowering plants (Morning Glory!). Older leaves or young ones?
cheers, suzy

[philcooper]

EJ,

This was covered under "two-colour leafed tomato plants" and the general conclusion was that there was not too much to worry about at this stage. Possibly over watering, this causes many plants to produce yellow leaves. Or even the pot is too small.

If they aren't too wet then a dose of nitrogen fertiliser won't do much harm

I think the cold makes them (like us) go blue)