Exposure Full-sun
Matures in 100 days
Season Warm season
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C. pepo. Try Delicata squash seeds for a mild tasting, thin-skinned, delicate squash. The smallish 15 x 8cm (6 x 3") fruits on this sometimes sprawling plant will store well for months after harvesting. Sweet and lovely. Delicata squash fruits are oblong and creamy white, striped with green bands. They have a very sweet, appealing flavour that people frequently compare with sweet potatoes. Allow the fruits to ripen fully on the vines, but harvest before frost. Give each fruit a wipe with a weak bleach solution, and then store in a cool, dry place and enjoy the squash all winter long.
Matures in 100 days. (Open-pollinated seeds)
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Latin
Latin
Summer & Winter Squash: Cucurbita maxima, C. pepo, & C. moschata. Specialty Squash: Momordica charantla, Luffa acutangula.
Family: Cucurbitaceae
Difficulty
Difficulty
Easy, but all squash plants take up space, and some can be huge.
Season & Zone
Season & Zone
Season: Warm season
Exposure: Full sun
Timing
Timing
Direct sow or transplant in late spring once the soil is warm. For transplants, start seeds indoors during the first two weeks of May. Optimal soil temperature: 25-35°C (77-95°F). Seeds should germinate in 7-14 days.
Starting
Starting
Sow seeds 2cm (1″) deep. Sow 3 seeds in each spot where you want a plant to grow, and thin to the strongest plant. Space summer squash 45-60cm (18-24″) apart in rows 90-120cm (36-48″) apart. Give winter squash and pumpkins even more room with a minimum of 90-120cm (36-48″) apart in rows 120-180cm (48-72″) apart.
Growing
Growing
Ideal pH: 6.0-6.8. These big plants need lots of food. Use 1 cup of complete organic fertilizer worked into the soil beneath each plant. All squash grow male flowers first, at later female flowers. The female flowers have tiny fruits at the base of their petals and require pollination by bees mostly. Incomplete pollination often happens at the beginning of the season, and results in misshapen fruits that are withered at the blossom end. Just discard these damaged fruits before they begin to rot. Encourage bees to visit the garden by growing Phacelia, sunflowers, or buckwheat for improved pollination.
Harvest
Harvest
Summer Squash: Pick when small, if fruit gets big the plant stops producing. Check the plants regularly.
Winter Squash:
Winter Squash: Fruit is ripe if your thumbnail doesn’t mark the skin and the stem is dry and brown. Cut the stem about 4cm (2″) from the fruit. Squash survive a light frost, but store better if harvested before frost.
Storage:
Storage: Field-cure for 10 days in the sun, or cure indoors in a warm room for 4 or 5 days. To prevent mould sponge the skins with a solution of 10 parts water to 1 part chlorine bleach. Store at 10-15ºC (50-60ºF) with low humidity with good air circulation. Try on a shelf in the garage.
Seed Info
Seed Info
In optimal conditions at least 80% of seeds will germinate. Usual seed life: 2 years. Per 100′ row: 180 seeds, per acre: 15M seeds.
Diseases & Pests
Diseases & Pests
Bacterial wilt (Erwinia tracheiphila) – Remove and destroy infested plants. If striped or spotted cucumber beetles appear, control as early as possible. Powdery mildew – avoid wetting foliage if possible. Water early in the day so that above ground parts of the plants dry as quickly as possible. Avoid crowding plants and eliminate weeds around plants and garden area to improve air circulation. Viral disease – remove and destroy entire infested plant along with immediately surrounding soil and soil clinging to roots.
Companion Planting
Companion Planting
Companions: corn, lettuce, melons, peas, and radish. Avoid planting squash near Brassicas or potatoes. Borage is said to improve the growth and flavour of squash. Marigolds and nasturtium repel numerous squash pest insects.
More on Companion Planting.
Direct sow or transplant in late spring once the soil is warm. For transplants, start seeds indoors during the first two weeks of May. Optimal soil temperature: 25-35°C (77-95°F). Seeds should germinate in 7-14 days.
Sow seeds 2cm (1″) deep. Sow 3 seeds in each spot where you want a plant to grow, and thin to the strongest plant. Space summer squash 45-60cm (18-24″) apart in rows 90-120cm (36-48″) apart. Give winter squash and pumpkins even more room with a minimum of 90-120cm (36-48″) apart in rows 120-180cm (48-72″) apart.
Ideal pH: 6.0-6.8.
These big plants need lots of food. Use 1 cup of complete organic fertilizer worked into the soil beneath each plant. All squash grow male flowers first, at later female flowers. The female flowers have tiny fruits at the base of their petals and require pollination by bees mostly. Incomplete pollination often happens at the beginning of the season, and results in misshapen fruits that are withered at the blossom end. Just discard these damaged fruits before they begin to rot. Encourage bees to visit the garden by growing Phacelia, sunflowers, or buckwheat for improved pollination.
In optimal conditions at least 80% of seeds will germinate. Usual seed life: 2 years. Per 100′ row: 180 seeds, per acre: 15M seeds.
Summer Squash: Pick when small, if fruit gets big the plant stops producing. Check the plants regularly.
Winter Squash: Fruit is ripe if your thumbnail doesn’t mark the skin and the stem is dry and brown. Cut the stem about 4cm (2″) from the fruit. Squash survive a light frost, but store better if harvested before frost.
Storage: Field-cure for 10 days in the sun, or cure indoors in a warm room for 4 or 5 days. To prevent mould sponge the skins with a solution of 10 parts water to 1 part chlorine bleach. Store at 10-15ºC (50-60ºF) with low humidity with good air circulation. Try on a shelf in the garage.
Disease & Pests: Bacterial wilt (Erwinia tracheiphila) – Remove an destroy infested plants. If striped or spotted cucumber beetles appear, control as early as possible. Powdery mildew – avoid wetting foliage if possible. Water early in the day so that above ground parts of the plants dry as quickly as possible. Avoid crowding plants and eliminate weeds around plants and garden area to improve air circulation. Viral disease – remove and destroy entire infested plant along with immediately surrounding soil and soil clinging to roots.
Companion Planting: Companions: corn, lettuce, melons, peas, and radish. Avoid planting squash near Brassicas or potatoes. Borage is said to improve the growth and flavour of squash. Marigolds and nasturtium repel numerous squash pest insects.
