Help w/ a new (to me) zucchini problem!

Hello all - I'm having an issue w/ my zucchini plants that is new to me! I was hoping I won't sound crazy and someone could tell me this is a known thing, hopefully with solutions.

Basically, the plants look fantastic, no signs of disease thus far,  but it's like someone hit pause on the growth of the zucchini themselves! I'm not talking about when little baby zucchini don't get pollinated and abort. None of the zucchini on any of the plants has any signs of shriveling/rotting like they would in that case, and I've been tracking this issue for a week. There is one zucchini that has been roughly 6-7" long and 1-1 1/2" diameter - in other words, what I'd normally say will be ready to pick in a day or two - for that full week!

I have some crookneck squash and cucumbers that are all growing and producing totally fine. I have zucchini growing opposite ends of the garden, probably 30-40' from each other, and they are all behaving the same. Any ideas here? Thanks so much; have a great one and for those in the US (I think this forum is international right?) happy 4th!

Mike

Are you having a heat wave? If so, the zucchini might be struggling more than other cucurbits. This is what has been happening to me.

Are all your zucchini from the same packet of seeds and was it a new packet this year? Maybe you accidentally bought a mini variety, or maybe the seed producer accidentally made a mini variety? I dunno, though, as I've never heard of mini zucchinis.

Last year I accidentally grew a mini cucumber, Harmonie. I mean, I guess it wasn't an accident: I'd heard that variety highly recommended by someone I admired, so I bought seeds and grew it without reading the description. Oops! Tasty, but I wasn't expecting teeny cukes.

Hmm you know that may be it actually - we had the torrential rain for 2-3 days, then we had blistering sun and 90+ temps for several days. I'll read up on how high temps can impact zucchini!

Ha that's an interesting thought! I only bought one kind so I'm pretty sure I didn't mistake anything, but they could have given me the wrong kind lol! It wouldn't be the first time - I once ordered a bush snap pea and got something that grew at least 6'....wasn't planning on that so didn't set up any kind of trellising. That was super fun. 😳