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Growing Sibley Squash in the Vegetable Garden

Sow Sibley winter squash seeds 1 inch deep in warm soil after the last frost. Direct sowing is recommended for best results, but seeds can be started indoors 3-4 weeks before transplanting. Space plants 8-12 feet apart with rows 8-12 feet apart to allow vines to spread.

Keep soil consistently moist and provide mulch to retain moisture. Train vines to reduce sprawl if space is limited. Good companion plants include corn and beans. Monitor for squash vine borers and use row covers if necessary.

Harvesting Sibley Squash

Harvest Sibley winter squash when rinds are hard and skin turns a solid blue-gray color, typically in fall before frost. Cut fruits with a few inches of stem attached. Cure in a warm, dry place for 10-14 days before storage. Flavor improves after curing and during storage.

About Sibley Squash Garden Seeds

Sibley winter squash was introduced by Hiram Sibley & Co. Seed Company in 1887.

Renowned for its excellent storage ability, often lasting 6 months or more under proper conditions.

The sweet, dry flesh makes it ideal for baking, roasting, or mashing.

Stories From Our Gardeners

"The Sibley winter squash is one of those treasures you plant once and then never want to be without again. Its vines can really stretch out, so be sure to give them plenty of room. Mine rambled across the garden fence and even tried sneaking into the tomatoes one year. The reward for that sprawl is a set of gorgeous, teardrop-shaped fruits with slate-blue skin and a creamy, golden interior that sweetens as it cures. Freshly harvested, they're good, but if you can wait a month or two, the flavor transforms into something rich, nutty, and almost chestnut-like. I pulled a Sibley from storage in March and found it just as delicious as the day I tucked it away in the fall. That keeping power makes it invaluable in the kitchen. Sibley is perfect for roasting, soups, pies, or mashed with butter. My tip: Harvest before a hard frost, let them cure in a warm, dry spot for a week or two, then store in a cool, dry basement or pantry. They'll reward you all winter long. Growing Sibley feels like tapping into a piece of history, as it's an heirloom introduced in the late 1800s. If you've got the space, this is a squash that will keep both your garden and your table full."

- S.W. Smith, True Leaf Market Writer

Sibley Squash Seeds Per Package:

• 4 g Packet - Wholesale - Approximately 20 Seeds
• 1 oz - Wholesale - Approximately 175 Seeds
• 4 oz - Bulk Seeds - Approximately 700 Seeds
• 1 lb - Bulk Seeds - Approximately 2,800 Seeds
• 5 lb - Bulk Seeds - Approximately 14,000 Seeds
• 25 lb - Bulk Seeds - Approximately 70,000 Seeds

Non-GMO Variety Type seeds are available for Fast Free Shipping on qualifying orders.