Tromboncino Squash

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The Tromboncino Squash is an Italian heirloom squash sure to impress with its distinctive curving, elongated shape resembling a trombone! This squash can reach impressive lengths, often exceeding two feet with a slightly wider base. The flesh is described as delicate, and lightly sweet, and succulent, like a combination of zucchini and butternut squash, making it a perfect choice for a wide range of culinary creations. Harvest for grilling, roasting, sautéing, or even spiralizing into noodles. Bring a taste of Italy and culinary creativity to your garden!

Also Known As: Trombetta, Tromboncini, Zuchinio, Zucchetta Rampicante, Climbing Zucchini, Serpent of Sicily. Zucchino Trombolino d'Albenga, Tromba d'Albenga, Cucuzzi, Cucuzza Snake, Goo-gootz, Long Bottle Gourd.


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Plant Name:
Tromboncino Squash
Latin Name:
Cucurbita moschata 'Tromboncino'
Days to Germinate: 7-14
Days to Harvest: 65
Germination Rate: 99%
Test Date: 3/24
Growth Habit: Vining
USDA Zones: 3-11
Lifespan: Annual
Brand: TomorrowSeeds
Sunlight: Full Sun, Partial Shade
GMO: No
Pollination:
Heirloom, Open-Pollinated
Fungicide-Treated Seeds:*: No
Seeds Packed For**: 2025

*Fungicide-treated seeds protect the seedlings from diseases until they are up and growing. Do not eat treated seeds.
**Seeds are freshly packed for the growing season of the year listed. Seeds are still viable beyond pack date. Store in a cool and dry location such as the refrigerator or basement to best preserve germination rates.


Planting Instructions:

 

Soil Preparation:

To prepare soil, remove weeds, large rocks, and litter from the planting area. Leave small weeds and dead grass, they will enrich the soil when turned under. Spade the soil 8-12 inches deep and turn each shovel of soil over completely to cover the plant materials with soil. You may add fertilizer (see "Fertilizing" below) or 2-3 inches of organic material such as compost, leaves, or rotted hay over the planting area at this point. Till to mix this organic material into the top 8-10 inches of soil. Make rows of soil beds 4-6 inches high and at least 3 feet apart. This formation of ridges will help with drainage.
 

Planting:

Plant in the spring after all danger of frost has passed and the soil is warm. To plant, make 1 inch deep holes spaced 4 feet apart in raised beds down the rows, then plant 1-2 seeds in each hole. Cover thinly with soil and water after planting. After the seeds come up and plants are 3-4 inches tall, thin to 3 plants per hill. Tromboncino will grow on vines which can then be trained over a trellis or sprawl on the ground.
 

Planting Depth: 1 inch
Within-Row Spacing:
4 feet
Between-Row Spacing:
3-8 feet (can trellis or sprawl)

 

Care During the Season:

Watering: Water the plants enough to keep them from wilting. If the weather is really dry, squash plants should be watered at least once a week. Sandy soils need to be watered more often than heavy clay soils.

Weeding: Keep plants as weed-free as possible. When plowing or hoeing do not dig deeper than 1 inch to prevent from cutting the feeder rooters which may slow the plant's growth.

Fertilizing: You may optionally add scatter 2-3 pounds of a complete fertilizer for each 100 square feet of garden area. Work into the soil and leave the surface smooth. For small gardens, use 2-3 tablespoons of fertilizer for each hill. Scatter the fertilizer evenly over a 2 foot by 2 foot area. work it into the top 2-3 inches of soil. When blooms first appear, you may optionally apply 2 tablespoons of fertilizer around each hill. Do not let fertilizer touch the plants. Water the plants after fertilizing.

Insecticides: Insecticides may be used to protect plants. Bt-based insecticides and sulfur are organic options that can be used for prevention. Sulfur also has fungicidal properties and helps in controlling many diseases. Larvae of the Squash vine borer are usually found inside the stem and cannot be controlled once they are inside the stem. Sevin® and Thiodan® can control for squash bugs. Pyrethrin and rotenone can control for the cucumber beetle. Before using a pesticide, read the label and always follow cautions, warnings and directions.

Diseases: Check the plants daily and if spots or mold appear, treat the plant with an approved fungicide. Neem oil, sulfur, and other fungicides may be used. Please always follow label directions.
 

Harvesting:

When tromboncino is about 3 feet long, fruit will mature and skin may harden. Harvest tromboncino when they are young, pale green, and skin is still tender for summer squash or allow to harden and pale in color for winter squash. To harvest, cut from the vine. Old squash vines can be composted or worked in the soil well before the Spring planting season.



Nutrition Facts:



Tromboncino
Calories 22
% Daily Value*
Total Fat 0.6 g 0%
Saturated fat 0 g 0%
Cholesterol 0 mg 0%
Sodium 16 mg 0%
Potassium 512 mg 14%
Total Carbohydrate 6 g 2%
Dietary fiber 2 g 8%
Protein 2.4 g 4%
Vitamin C 58% Calcium 3%
Iron 3% Vitamin D 0%
Vitamin B6 15% Cobalamin 0%
Magnesium 8%
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.