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Zucchetta Tromboncino Summer Squash (Heirloom, 60 Days)

29 reviews

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 like a winter squash. A firmer zucchini than we’re used to; flavor is mild and delicious. Can be grown up a very strong trellis. Tolerates squash vine borer. 

20 seeds


Cucurbita pepo

Germination: 4-10 days

Germination Temperature: Optimum soil temperatures 70-85ºF

Seed Sowing Depth: 1/2-1" deep

Sowing Indoors: 3-4 weeks before 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 last frost. 

Sowing Outdoors: Sow after last frost when 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.


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Customer Reviews
4.8 Based on 28 Reviews
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Michael A.
United States
I recommend this product
Tromboncina squash.

Excellent. I started 6 plants. It is way too early for a harvest here in Seattle.

Mara M.
United States United States
I recommend this product

Great! I haven't planted this year's Tromboncino, but after last year's zucchini harvest of 3 different varieties, we decided this year to plant ONLY tromboncino because they were absolutely the best tasting even when giant, and were easier to see to harvest and didn't get stuck and wet and moldy under the leaves.

Steve H.
United States United States
I recommend this product
Great Zuccini like squash

Grows fast and produces all season. Its taste is similar to zucchini. I use it to make zucchini cake and bread. They will grow in lengths over 24" if you let it. Pick it when it reaches about 10 to 12 inches for best flavor and tenderness.

Ayaana .
United States United States
I recommend this product
Summer “sleeper”

Every year we like to add a different variety of plants to grow along with our standard crops. Although I noticed that this zuccheta was a pretty vigorous grower I ignored it for a long time because it was “weirder“ than my yellow and zucchini squash. It took a couple of attempts cooking it, mixing it in with the other summer squash before I noticed its unique creamy texture. I’m surprised more people are not aware of this awesome tasting squash. I will definitely be growing it again next year.

Judy W.
United States United States
I recommend this product
Our first time to grow Zuchhetta

This has been a fun experiment with a new variety of squash. The biggest appeal is that it is bug resistant. It tastes great and is a conversation item in the garden.

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