I’ve got lots of flowers on my cucumber plants but only one cucumber is growing....??
Cucumbers will stop setting fruit if the temperatures get too high. Have you been having that Heat Wave by you?
Also, you either have too many male flowers and not enough females (that carry the fruit) or vice versa. They usually even themselves out in the end. ;)
Too much nitrogen in the soil, or what you’re using as fertilizer can cause that, too. Just like tomatoes, if you have too much nitrogen, you get big plants but little production out of them.
How are pollinators by you? Do you have bees and such buzzing around? Lack of pollination can be a problem for cucumbers, too.
Lastly, they have cucumber varieties now that are Parthenocarpic, which only produce female flowers and self-pollinate - no male flowers needed.
“A few parthenocarpic cucumber varieties are available for home gardeners. Parthenocarpic slicers include Sweet Success, Euro-American, Socrates, Tyria, Diva, Tasty Jade and Suyo Long. County Fair 83 is a parthenocarpic pickler, but the slicers can also be harvested young and used for pickling since seeds are not a problem.”
https://www.hunker.com/13426694/parthenocarpic-cucumber-varieties
Of those above, I have grown ‘Diva’ which was nice, but fatter than I wanted. I like the English-style cukes that are long and thinner with few seeds and thin skins. This season I am growing, ‘Sweeter Yet’ and ‘Summer Dance.’
We’ve picked 200 + cukes this season.
Local farmers mkt has em 2 for a $1...