|The requirements for planting and growing summer and winter squashes are the same except for the time required to harvest.
Squash require full sun, warm weather, and good air circulation to mature. Squash grows best in growing zones 3-10. If your growing season is short, choose a bush variety squash which will mature more quickly.
Plant squash in humus-rich, well-drained soil; work in organic compost the autumn before planting or spread compost in the growing bed during the growing season. Bush-types varieties can be grown in containers.
Squash Planting. To get a jump on the season, start summer squashes indoors 3–4 weeks before the last frost. Sow squash outdoors or set out seedlings when the soil temperature reaches 70ºF (21ºC). Sow seed ½ inch–1 inch (13mm–2.5 cm) deep. Thin successful plants to 36 inches (90 cm) apart in all directions.
Squash is often planted on slight mounds or hills. Sow 4–5 seeds 2–3 inches (5–7.5 cm) deep, 3–4 inches (7.5–10 cm) apart in hills raised 12 inches (30 cm) spaced 6 or more feet (1.8–2.4 m) apart. Thin to 2 successful plants per hill. If plants are supported on wooden tripods space hills 4 feet (1.2 m) apart.
|Information on this page is from Missouri Botanical Gardens,
Dave’s Garden, All things Plants, Texas Superstar or Aggie Horticulture
This page last updated or reviewed