This is my first year growing zucchini. Before this I only had the common green store bought. I know that after eating zucchini fresh from the garden I will never be having store bought again.
My first zucs were from my seedlings bought that just said green zucchini. Cavili is creamier than those are.
Zuke problem
my favorite is golden delight hybrid squash.
http://www.jungseed.com/dp.asp?pID=03541&c=148&p=Golden+Delight+Hybrid+Squash
Do NOT, and I repeat, DO NOT, EVER grow "Costa Romanesca" Zucchini. Unless, that is, you wish your garden to turn into the Little Shop of Horrors. This heritage variety grew leaves almost five feet tall, with their stems of course, and the beautiful squash are variegated shades of green, but not ready unless they are about 16 inches long. No joke. There is no turning back with this variety - it is STEROIDAL.
As big as the squash are, the plants too, there has been a lot of rot this Spring, with moderate production, methinks.
So, never again. While this was a fun experiment, I soon started to find my other veggies overwhelmed by the fierce growth of Costa. I bought the seeds through the Southern Exposure Seeds website, and can most heartily recommend this variety for those with HUGE gardens, for most of us, let it alone! LOL!
Good thing I grow veggies for my Church to pickle!
I'm growing Costata Romanesco this year. It's a sprawling mess. The stems twist and break and it can't hold it's won leaves up. Mine is nowhere near as large as you report, but I agree they are best eaten at a fairly large size.
Granted the fruits are pretty, but I think I'm going back to Black Beauty. None of the varieties I've tried in recent years has been anywhere near as reliable and capable.