Summer Squash comes in four common types types – Zucchini, Yellow, Patty Pan and Round.
Zucchini can be dark green, light green or yellow. All are long and slender.
Yellow Summer squash is slender with a swollen end. Straight neck and Crookneck are two popular varieties.
Patty pans are UFO shaped and come in greens, yellow and white.
Round often have the word “ball” in name, such as Eight Ball, One Ball and Cue Ball.
Because viruses and mildews love summer squash, resistant varieties have been developed. The seed catalog will use the abbreviations CMV, PM, and ZYMV among others.