Squash - Thelma Sanders

Minimum Seed Count: 15

A beloved heirloom with a rich history and incredible flavor, Thelma Sanders Sweet Potato Squash has earned its place in gardens for generations. This acorn-type squash produces cream-colored fruits with dark green ribbing and sweet, smooth flesh that many gardeners compare to baked sweet potatoes. Its exceptional flavor, reliable production, and excellent storage qualities make it a favorite for fall and winter meals.

Plant Details

• Species: Cucurbita pepo
• Plant Type: Winter squash
• Days to Maturity: 85–100 days
• Fruit Weight: 1–3 pounds
• Fruit Color: Cream-colored with dark green ribs
• Growth Habit: Vigorous vining plants

Growing Guide

Starting Seeds

• Direct sow after all danger of frost has passed and soil temperatures reach at least 70°F.
• In short-season climates, start indoors 2–3 weeks before transplanting.
• Plant seeds 1 inch deep.

Planting

• Choose a location with full sun.
• Space plants 3–4 feet apart.
• Allow plenty of room for vines to spread.
• Plant in rich, well-drained soil with plenty of organic matter.

Growing Conditions

• Full sun (8+ hours daily)
• Fertile, well-drained soil
• Consistent moisture during flowering and fruit development
• Mulch to conserve moisture and suppress weeds

Care

• Fertilize at planting and again when vines begin vigorous growth.
• Encourage pollinators to visit flowers for the best fruit set.
• Water deeply during dry periods, especially while fruits are developing.

Harvesting

• Harvest when fruits have developed their mature cream color and the rind becomes hard.
• Cut fruits from the vine, leaving several inches of stem attached.
• Cure in a warm, dry location for 10–14 days before storage.
• Properly cured squash can store for several months.

History

Thelma Sanders Sweet Potato Squash was preserved by Thelma Sanders of Missouri, who received the variety from a friend whose family had grown it for generations. She shared the seeds with the public through the Seed Savers Exchange, helping ensure this outstanding heirloom would not be lost. Today, it remains one of the most popular heirloom winter squashes thanks to its excellent flavor and dependable performance.

Thank you to our friends @SamsGrowingFood for sharing this photo with us!