Judith in France writes
On Oct 2, 11:26*am, K wrote:
I've returned from a few days away to find that one 'patio type' tomato
out of a pot of 3 has wilted/ The other two are looking healthy.

There's no sign of any problem with the wilted one apart from the fact
that all the leaves have wilted - no spots discoloration or anything. It
looks exactly as if I haven't watered it - except, of course, it's in
the same pot as two *perfectly happy plants. The fruit on it still looks
healthy. It's in a greenhouse, not outdoors.

Any ideas?

Take a look at the roots, eaten by a grub?

I've already had a good tug on the roots and they're in fine condition
(1) A tug threatens to bring half the soil in the pot with it.

(1) physically, that is, ie in terms of intactness and strength. But
wilting suggests they may not be functioning.
--
Kay