Yellow Crookneck Heirloom 8-9-inch Easy-to-grow, bush, yellow summer squash has been a favorite for over 150 years. Abundant producer of yellow-skinned, white-fleshed summer squash that are delicious lightly steamed. Sow 2-3 seeds every 2-3 feet in rows 3-6 feet apart when danger of frost has passed. Thin to strongest plant. Can be sown indoors in pots, 2-4 weeks before the last frost, and transplanted very carefully. Enrich soil heavily with mature compost Harvesting tips. Harvest young, when 6-8 inches long. Harvest every other day when plant is producing heavily. Planting depth: 1-inch, Soil temp for Germination: 65-90-Degree F, day to Germination: 3-7 Plant Spacing: 3-foot-day to maturity: 55 Full sun Moderate water, 25 Seed Count.