I planted 4 courgette plants in May, only one survived.
I have had to try hand pollinating with 50% success.
The plant developed one courgette which I have let grow on, It's now about 16" long & 4-5" in diameter..... I really like stuffed Marrow
As yet, this has been the only female flower to set (?) although there has been one other that I tried to pollinate but it rotted.
Has my growing the one successful courgette into a marrow affected the plant in any way preventing the production of female flowers, or won't it have made any difference ?