Allotments 4 All

Too marked for potash deficiency? And, anyway, they are fed every watering.

Only on a few plants at present - esp the cherry types.

Is it a something that peat-free bags are prone to?

Have to confess I have not much experience with tomatoes (or anything else!) in growbags - hanging baskets, yes, but not greenhouse ones. 

Can the PF bags have too much of something rather than not enough???

Thinking aloud, as it were.

moonbells

Any discolouration running through the stems? or where the leaf joins the stem?

Good try, moonbells - but this is the first year with PF. They are certainly a pain to water - in the upright position, anyway.

No, jenny - nothing untoward.