Question
How do I know when to pick zuchini?

Answer
Owen,
You pick it based on the size you like to eat. In general, most people pick the zucchini when it's between 4 and 7 inches long. Zucchini is best before it grows too large. If a couple grow more than three inches in diameter or more than 10" long, you can hollow those out and stuff them with the stuffing of your choice (sausage and peppers, breadcrumbs and seasoned tofu etc) and bake them, but it's really best to eat them when they're small. Very large ones can be carved like pumpkins, however, should you discover some "baseball bat zucchs" in your garden.

I like them best at about 5" long.

Enjoy!
C.L.