Black Beauty Zucchini - Organic Summer Squash Seeds

Sow outdoors after frost danger has passed and the soil has warmed to at least 60–65°F. Cold, wet soil slows germination and increases the chance of seed rot.

For an earlier start, sow indoors 2–3 weeks before transplanting. Move plants outside only after nights remain above about 50°F and the soil is warm.

In long-season areas, a second sowing in early or midsummer can replace older plants affected by pests or disease.

Direct sow seeds about 1 inch deep. Space bush varieties 24–36 inches apart, with enough room between rows for airflow and harvesting. For hill planting, sow several seeds and thin to the strongest two or three plants.

Start indoor seedlings in individual pots because squash roots dislike disturbance. Transplant while plants are small, usually with no more than two or three true leaves.

Keep the soil evenly moist during germination. Avoid saturated conditions, especially before seedlings emerge.

Choose a site with full sun and fertile, well-drained soil. Work compost into the bed before planting, but avoid excessive nitrogen, which can encourage leaves at the expense of flowers and fruit.

Water deeply at soil level whenever rainfall is lacking. Consistent moisture is especially important during flowering and fruit development. Mulch after the soil has warmed to conserve moisture and limit soil splash.

Squash produces separate male and female flowers. Male flowers usually appear first. If small fruits begin to grow and then yellow or rot, poor pollination may be the cause.

Harvest elongated squash such as zucchini and yellow squash when they are about 6–8 inches long and the skin is still tender. Pick pattypan types when they are roughly 3–4 inches across.

Check plants every day or two. Once pollinated, fruits can reach harvest size within a week. Frequent picking keeps the plants flowering and producing.

Cut fruits from the plant with a knife or pruners, leaving a short stem attached. Remove overlooked, oversized fruits even if they are no longer tender enough for the table.

Summer squash is a water-rich food that provides fiber, vitamin C, vitamin B6, folate, potassium, manganese, and antioxidant plant compounds. Yellow varieties contain carotenoid pigments, while green skins contribute chlorophyll and other phytonutrients.

Enjoy young squash raw, grilled, roasted, sautéed, stuffed, fermented, or added to soups and baked dishes. Tender blossoms are also edible and may be filled, fried, or added fresh to seasonal meals.

Squash vine borers can cause a healthy plant to wilt suddenly. Look for damaged stems and sawdust-like material near the base. Squash bugs, cucumber beetles, aphids, and cutworms may also feed on plants.

Use row cover over young plants where pests are common, but remove it when female flowers appear so pollinators can reach them. Check leaf undersides for squash bug eggs and remove them early.

Powdery mildew, bacterial wilt, viruses, and root rots may occur. Improve airflow, rotate crops, water at soil level, and remove badly affected plants. Avoid planting in low areas where water collects.

Summer squash is usually Cucurbita pepo and crosses readily with other varieties of the same species, including many pumpkins, acorn squash, and gourds. Grow only one C. pepo variety or isolate and hand-pollinate selected flowers to keep seed true to type.

Leave chosen fruits on the plant far beyond the eating stage. Seed is mature when the fruit is oversized, the rind is hard, and the stem begins to dry.

Cut the fruit open, scoop out the seeds, and rinse away the pulp. Spread the clean seeds in a single layer and dry them thoroughly for 1–2 weeks. Store fully dry seed in a labeled, airtight container in a cool, dark, dry place.

• Check plants daily once fruiting begins.
• Remove oversized fruit to keep new flowers forming.
• Use row cover early, then uncover plants for pollination.
• Plant a second crop where the season is long enough.
• Hand-pollinate female flowers when pollinator activity is low.