Watermelon lovers who don't mind waiting longer for their fix still have time to plant their own. "Depending on the variety, 80 to 90 days is a good growing season for a watermelon," Egel said.

Watermelons can be time- and labor-intensive crops, so you may want to know what kind of yield to expect so you can ensure your hard work pays off. Unfortunately, as with many things in gardening ...