Garden Seeds
Tromboncino Squash Seeds, Italian Climbing Zucchini
Sold by Autumn Prairie Pumpkins · United States
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Tromboncino Squash Seeds, an Italian climbing zucchini ( Cucurbita moschata ) harvested young as summer squash or mature as winter squash. Vine borer resistant. Shipped from Kansas. Cucurbita moschata varieties are generally less susceptible to squash vine
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borers than many other squash, but damage is still possible. Growing conditions and care matter. Why species predicts survival here. 🛡️ Vine borer resistance , the solid stems of Cucurbita moschata can offer some resistance to squash vine borers, but plants still need monitoring for damage. 🌱 Free shipping on seed-only website orders $30+ , ships from Newton, Kansas. ✅ 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 → An Italian climbing zucchini that doubles as a winter squash. Harvest young for tender summer squash, or let it mature on the vine for dense, butternut-like flesh. Growing Guide Botanic Name Cucurbita moschata Life Cycle Annual Maturity 60-90 days Sun Full sun Plant Spacing 36-48″ apart Sowing Depth 0.5-1″ Vine Habit Climbing vine Fruit Weight 1-3 lbs (when summer), up to 15 lbs mature Fruit Color Light green to tan Best For Summer/winter squash Frost Hardy No Start Indoors Yes, 3 weeks Container Friendly No (vigorous 15-ft vines) Disease & Pest Resistance Vine borer resistant (moschata species), powdery mildew resistant Also known as: Zucchetta rampicante, Trombetta, Serpent of Sicily, climbing zucchini SKU: APP-SEED-MOS-TRB-10 · APP-SEED-MOS-TRB-20 History & Origin Tromboncino (also called "zucchetta") is an Italian heirloom that has been grown in Italian kitchen gardens for generations. This unique climbing squash belongs to the moschata species, giving it natural resistance to squash vine borers, a massive advantage over standard zucchini. Young fruits are used like zucchini; mature fruits develop hard shells and sweet, dense flesh like winter squash. This dual-purpose nature makes it one of the most versatile squash in any garden. In the Kitchen Harvest young (12-18 inches) and use like zucchini, saute, grill, or spiralize into noodles. Let them mature on the vine for winter squash with sweet, nutty flesh perfect for soups and roasting. The long, curved shape slices into beautiful rounds for grilling or making zucchini fritters. Related Reading · Saving Squash Seeds 🌱 Browse all vine borer resistant varieties → 🌻 See our Kansas growing guide → Quick Specs Species Cucurbita moschata Days to maturity 60 to 70 for summer harvest Sowing 1 in deep, 2 to 3 ft apart on a trellis Sun Full sun Vine habit Vigorous climber, best trellised Fruit size Harvest young at 8 to 12 in 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 Tromboncino Squash 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 Tromboncino Squash in Kansas? Plant after frost danger has passed and the soil has warmed. Harvest young, tender fruit for use like zucchini; the listed summer-harvest timing does not mean the fruit is mature for winter storage. For winter squash, leave fruit to mature on the vine and harvest before damaging frost. Can Tromboncino replace zucchini? Yes. Harvest young, tender Tromboncino for cooking like zucchini. Its vigorous climbing vines need space or sturdy support. Vine borer resistance does not guarantee an undamaged plant or a longer harvest. Will it ripen before frost? Young summer squash and mature winter squash are different harvest stages. Allow additional growing time for hard-rinded winter squash, and plan around your local first-frost date rather than treating the young-harvest estimate as a storage-harvest deadline. Planting later, or gardening in a different zone? Check your own planting window .