We have a lot of rain this summer. My veggie garden is raised and the cucumbers, tomatoes, green beans and peppers are all beautiful and producing fruit and I've already picked some. But the zucchini, although huge with lots of flowers and lots of fruit, is not getting any bigger. I am not referring to the plant itself. It looks great, but all the zucchini are maybe 5 inches in length and not getting any bigger. I've never had this happen before and I've found a few finally turning yellow and rotting. There are not other problems with any of the plants (including Brussels sprouts) but this has me stumped. I wonder if the abundance of rain is the problem? We have not had a full week of sun and when we get a couple of days with sun, it is hot and humid. Any ideas? Thank you!
Certified GKH Gardening Expert
Your plant could be stressed from the amounts of heavy rain. Also sometimes is plants are to close together it can stunt the fruit.
I think your having good pollination if your zucchini is at least 5 inches.
You can try self pollinating.
Here are a couple of links with more information.