When should I harvest my summer squash?

Question:

When should I harvest my summer squash?

Answer:

Harvest zucchini and other long-fruited summer squash varieties when the fruit are 1½ to 2 inches in diameter and 6 to 8 inches long.  Scalloped types are best when 3 to 5 inches in diameter.  Fruit should have soft skins (rinds) that are easy to puncture with a fingernail.  Seeds should be soft and edible.  Harvest plants frequently for continuous production and to prevent fruit from becoming too large and less palatable.  

Learn more about harvesting summer squash in this article: Harvesting and Storing Vine Crops.