Waltham Butternut Squash Seeds, Award-Winning Heirloom

free shipping. Alaska, Hawaii, Puerto Rico, and military addresses have separate rates. Smaller orders have shipping calculated at checkout based on your destination; review your total before payment. Coffee has a separate paid shipping rate. Shipping details . Choose your patch: Need more of this variety? Choose 20 seeds for $5.99 . Want three varieties? The $11.99 Seed Trio includes 10 seeds each of Waltham, Dickinson, and Seminole . Seeds only; shipping is additional below the free-shipping threshold. ✅ Germination Promise: if your seeds fail to germinate under proper growing conditions, contact us within one year and we will replace them or refund your purchase. See the details . 📖 Read our complete growing guide for this variety → The gold standard of butternut squash. Waltham Butternut produces reliable harvests of smooth-skinned, tan fruits with sweet, fine-grained orange flesh. Developed at the Waltham Field Station in Massachusetts, this AAS winner stores beautifully for months. Growing Guide Botanic Name Cucurbita moschata Cucurbita moschata varieties are generally less susceptible to squash vine borers than many other squash, but damage is still possible. Growing conditions and care matter. Why species predicts survival here. Life Cycle Annual Maturity 100 to 110 days Sun Full sun (6+ hours) Plant Spacing 36-48″ in-row, with rows 6 to 8 ft apart Sowing Depth 1″ Vine Habit Vine Fruit Weight 3 to 6 lbs Fruit Color Tan/buff Best For Eating, storage Frost Hardy No Start Indoors Yes, 3 weeks Container Friendly No Disease & Pest Resistance Vine borer resistant (moschata type), powdery mildew tolerant Storage Life 3 to 6 months, cured and kept in a cool room Peak Eating Window Cure 10 to 14 days, flavor improves about a month after harvest Also known as: Waltham, Butternut Waltham SKU: APP-SEED-MOS-WB-10 · APP-SEED-MOS-WB-20 History & Origin Developed in the 1960s at the University of Massachusetts Waltham Field Station by breeder Bob Young. Waltham Butternut won the prestigious All-America Selections award in 1970 and quickly became the most widely grown butternut variety in North America. Its uniform bell shape, smooth tan skin, and small seed cavity set the standard that all other butternuts are measured against. A true heirloom that has stood the test of time. In the Kitchen The quintessential soup squash, peel, cube, and simmer with aromatics for a velvety butternut soup. Equally excellent roasted with olive oil and sage, pureed into risotto, or used as ravioli filling. Stores 3 to 6 months in a cool, dry place, developing sweeter flavor over time. The dense, fine-grained flesh holds its shape beautifully when roasted or cubed into stews. Related Reading Kansas Variety Guide · Kansas Planting Calendar 📖 Complete Waltham Butternut Growing Guide , planting tips, harvest timing, and kitchen uses for Kansas Zone 6b gardens. · Vine Borer Prevention Guide 🌱 Browse all vine borer resistant varieties → 🌻 See our Kansas growing guide → Untreated, open-pollinated heirloom seed. No fungicide coating. Save your own seed from your strongest fruit and grow it again next year. Quick Specs Species Cucurbita moschata Days to maturity 100 to 110 Sowing 1 in deep, hills 4 to 6 ft apart Sun Full sun Vine habit Vines 10 to 15 ft Fruit size 3 to 6 lb Pest resistance Highly vine borer resistant. Solid moschata stems are hard for borer larvae to tunnel into. Resistant, not immune, so still scout in June and July. Common Questions Is Waltham Butternut really vine borer resistant? Highly vine borer resistant. Solid moschata stems are hard for borer larvae to tunnel into. Resistant, not immune, so still scout in June and July. When should I plant Waltham Butternut in Kansas? Direct sow or transplant once soil holds 65 to 70 F, typically mid May to early June in Zone 6b. At 100 to 110 days to maturity, a late May planting ripens in September to October, right on time for curing before frost. How long does Waltham Butternut store after harvest? Cured fruit stores 3 to 6 months in a cool dry spot. Harvest when the skin is fully tan and the stem is corky, and cure for a week or two in a warm room first. Will it ripen before frost? Waltham Butternut Squash needs 100 to 110 days from sowing. In a typical Newton, Kansas Zone 6b season the first fall frost arrives between October 10 and 20, so direct sow by about June 13 to finish with a two week cushion. Planting later, or gardening in a different zone? Check your own planting window .