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Zucchetta Tromboncino Summer Squash (Heirloom, 60 Days)

Italian Heirloom. This tasty zucchini grows like squash and will need a lot of room for its 15’ runners. Light yellow-green fruit is slender with a bulbous end and should be harvested at about 10”. Leaving it on the vine can produce variously twisted squash specimens 3’ long and 6” wide and can be used as winter squash. A firmer zucchini than we’re used to; the flavor is mild and delicious. Can be grown up a very strong trellis. Tolerates squash vine borer. 

20 seeds


Cucurbita moschata

Germination: 4-10 days

Germination Temperature: Optimum soil temperatures 70-85ºF

Seed Sowing Depth: 1/2-1" deep

Sowing Indoors: 3-4 weeks before the last frost. Provide 70-85ºF soil temperature. Sow 2-3 seeds per cell/pot. Sowing into individual biodegradable peat/cow pots reduces root damage when transplanting. Transplant 36-48" apart after the last frost. 

Sowing Outdoors: Sow after the last frost when the soil temperature is over 70ºF. Sow a few seeds every 36-48". 

Harvest: Check and harvest a few times a week. Cut or kindly twist off fruit, starting at a 3-4”.

Tips: Plant in fertile soil, amended with compost or well-rotted manure, and keep well watered. They benefit from growing on black plastic and by using row covers for weed, insect control, and more rapid growth.


Customer Reviews

Based on 41 reviews Write a review
Customer Reviews
4.8 Based on 38 Reviews
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Michelle G.
United States United States
I recommend this product
Great squash to grow and eat!

I absolutely loved how they squash cooked up and tasted. It grew quickly and gave me a large quantity for harvest. I have left a couple on the vines to grow large and use as winter squash. I am very pleased with this squash and will be growing it again.

Tammy B.
United States United States
I recommend this product
Zucchetta Tromboncino Summer Squash

Have not harvested yet but growing great on trellis!

Melissa J.
United States United States
I recommend this product
Love these!

these are the lost successful squash I can grow- i have such a terrible time with squash bugs and borers but these are very resistant. The taste is buttery when used as a summer squash.

norman k.
United States United States
I recommend this product
great germination

Seeds germinated quickly and plants are doing great

Alan G.
United States United States
I recommend this product
Easy to Grow Great to Eat

I've grown this squash from Pinetree for years. It is a related to butternuts, so it resists borers. It doesn't turn to mush when sauteed or pickled. Give it plenty of room to spread or climb and enjoy. Passable as a winter squash. Would love to see it crossed with a butternut squash.

Pinetree Garden Seeds Zucchetta Tromboncino Summer Squash (Heirloom, 60 Days) Review