Minteeleaf said:

I planted several cherry tomato plants in very large tubs
(6+ gallons) with proper drainage holes, a pea-gravel base,
topsoil, 2 weeks ago. They have blossoms on them.
Three of them suddenly have a lot of yellowing leaves.
It has been cool here, in the 50's & very rainy with
very little sun. It is normally in the 70's & high 80's
by this time.

Any ideas on why these tomatoes are turning yellow?
I am in northern VA.

It's been too cool and very rainy...

When it stops raining and warms up, your tomatoes will be happier.

--
Pat in Plymouth MI

Any technology distinguishable from magic is insufficiently advanced.
(attributed to Don Marti)