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Zucchetta Tromboncino Summer Squash (Heirloom, 60 days)

Germ 7-10 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 like a winter squash. Firmer than the zucchini we’re used to; flavor is mild and delicious. Can be grown up a very strong trellis. Tolerates squash vine borer. 20 seeds


Indoors- Plant in individual biodegradable peat/cowpots 1/2”-1” deep, 3-4 weeks before last frost with soil temperature 70 degrees. Transplant 36” apart after last frost without disturbing the roots

Outdoors- 1/2”-1” deep after last frost, in warm soil at least 70 degrees. Sow a few seeds per space/hill with 24-36”.

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. Fertilize on a regular basis by watering with compost tea. Sow every few weeks for a continuous supply.

Customer Reviews

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Linda T.
United States
I recommend this product

So far So Good

I started the seeds inside about 6 weeks ago and they are growing really well Just transferred them outside to my veggie garden, will report back when they grow Squash.

Joyce R.
United States
I recommend this product

Zucchetta Tromboncino squash

I grew this last year and had great success. I expect the same this year. A great conversation piece besides being tasty if I keep ahead of it growing huge!

Donna Rammo

Amazing for "pumpkin" pie

Have grown these for years, mostly as summer squash sauteed. This year some real giants (3 feet long plus) turned yellow for winter keepers. Just made the most wonderful pie from a section of one huge yellow one as an experiment. So smooth and creamy after being baked and blended! After traditional spices were added and baked into a pie, it was superb! So it turns out that these squash are more than just a photo op that everyone wants when they see these eye popping giants growing on our 7 foot high trellis. Now I'm sorry we gave some away, but, no doubt the 4 remaining ones will still make a winters worth of pies. Grown in Prince Edward Island Canada by Donna and Lance Thanks Pine Tree.


Good harvest despite vine borers

I grew these for the first time in the summer of 2018. I used a trellis and a less than ideal piece of land however they grew and prospered...until the vine borers showed up. The vines resisted them much better than c. pepo summer squash, however some vines did eventually succumb. The surviving vines that climbed completely over the trellis and onto the ground did better...the vine roots aggressively and if given the chance it will put roots at every node and the borers would likely have not been as much of a problem. Despite the borers, I got more summer squash than I could eat and freeze. The mature squash makes a nice winter squash soup. I found the summer squash texture best when picked very small and tender.

Lucia V.
United States

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