Planted heirloom & hybrid seed cucumbers. Growing great on trellis. Both varieties look healthy with plenty yellow flowers. It's July 19th and still no cucumbers. Why aren't they bearing fruit?

Hi and welcome

As long as i know cucumber produce both male and female flowers on the same plant. Your plant could be still produce male ones. Just check that flower. Female flower that will produce fruit have little cucumber behind the flower.

Your plants looks healthy. Just wait for a while. The female flower will.come soon.

That's a lot of flowers there for them to only be male. Look at a bunch of them and see if any have tiny cucumbers on the base of the flower. If so, those are females. If you have both female and male and still no cucumbers, are there pollinators flying around? You could try making sure one female flower gets pollinated.

Welcome to NGA, @WavyDavy2350 !

What variety of cuke are you growing? Are your plants getting full sun? How long have they been growing? It might be helpful if we knew your USDA growing zone or location

Your plants look very healthy. I am betting on there betting an abundance of male flowers with the female flowers yet to come. It is surprising at just how many only male flowers show up when the plants first start showing blossoms.

Mine aren't producing yet either. Its been a slow summer - except for tomatoes.