Marrow End Rot

Question

My marrows and courgettes grow to about 4 inchesthen suffer from end rot, those that do survive will not grow any bigger than 5inches I always polinate them but this does not make any difference .the soil PH is 7. 0

Answer 1

This article may help with the ens rot:
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm