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Cultivating Gardeners



Product Description:

Cucurbita moschata 70 days. This Italian summer squash is a wonderful diversion from the usual. The light green-to-tan fruit can grow up to 3 feet long and may be harvested anytime, from just a few inches through its full size. Enjoy Tromboncino’s rich flavor steamed, grilled, or sliced raw in your favorite salad. A vining variety that is best trellised for straighter fruit.
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Customer Reviews

Based on 8 reviews
If you like summer squash & have trellis space - grow these!

Wowza! I think my last one of these was nearly three feet. One squash provides about four side dishes' worth for my family of three. It's tasty with a great texture & can be used just like any summer squash or zucchini. Beautiful avocado color & look when cut up. Nice with a scampi or piccata or primavera, or a standalone side any day.
As other folks here said, great squash bug resistance too. Vine borers decimated my zucchini this year, but have largely left these alone.
These are a standout in my garden this year. It's early in the season still and they're productive and look beautiful growing over one of my tunnels. I've barely gotten to know this plant but can already say this will be a go to for me & I will be growing it for many years to come!

J B.
productive and (mostly) bug free

grew these on a cattle panel trellis. It took over the entire trellis, just about 4 plants planted at one end. productive. Tasty. No Squash Vine Borer (SVB) damage, but I did inadvertently plant buttercup squash, which the SVB completely infested as it is a preferred type for them, so they did not bother the trombocino. Squash bugs were present, but not in extreme numbers so there was a little scarring of the fruit from them, and the squash bugs were hunted and hand picked off when we were able to do so to minimize numbers. This is definitely a squash to grow again due to its productive growth and bug resistance.

Squash Vine Borer Be Gone

My area of the country is prone to the squash vine borer problem. Year after year, I kept trying every method I could find to deter that little critter with no success. Then someone mentioned tromboncino to me. After years of failure I figured I'd give it a try. I only put in 5 seeds and I received 5 beautiful healthy-looking plants from it. I was informed though, forget all those techniques to curtail the vine borer. It's no longer needed.

Well, five plants with no vine borer problems and I have harvested 64 squash off those bushes this Summer. Every one of my neighbors have been enjoying those all Summer long with me!

Holly N.
amusing and prolific

We grew them on a cattle panel trellis and got a lot of production. They seemed to come in waves throughout the summer. I did add some calcium/lime to the soil mid -summer when one wave had a few blossom end issues. They perked right up and continued to produce into September. My son slices them in long, thin planks to make a gluten free lasagna. Roasted is great, too.

Soil Temp for Germ 65–85°F
Seed Depth 1–1 ½"
Seed Spacing 3–4/hill
Days to Emergence 5–10
Thin Plants to 1–2/hill
Row Spacing 3–6'
Fertilizer Needs Medium
Minimum Germination 75%
Seeds per Gram See below
Seed Life 3–4 years

Cucurbita spp. In the diverse family of squash are true nutritional powerhouses, encompassing a wide array of forms, flavors, colorations, and culinary applications. Squash are rich in the carotenoids necessary for vitamin A production and boast a wide complement of amino acids. While starchy, most of the carbohydrates in the fruit come from special polysaccharides, pectins, which have exhibited strong antioxidant, anti-inflammatory, and anti-diabetic, insulin-regulating properties.

Days to maturity are from date of direct seeding.

• Fertile, well-drained soil gives best results
• Squash is a warm season crop, so avoid planting too early; raised beds and plastic mulch help keep roots warm
• Squash are monoecious (bearing separate male and female flowers on the same plant) and require insect pollination
• Poor fruit set is often the result of inadequate pollination; plant bee attractant flowers

Direct Sowing
• Plant after frost danger when soil warms to 65°F
• Work in shovelful of compost and 1/2 cup TSC's Complete fertilizer into hill
• Keep soil evenly moist but not wet as too much moisture causes seed to rot
• Bush varieties: sow 3-4 feet apart
• Vining varieties: sow 4-6 feet apart

• Start indoors 3-4 weeks prior to anticipated transplant date in 4 inch pots
• Work in shovelful of compost and 1/2 cup TSC's Complete fertilizer into hill
• Transplant carefully as to not disturb roots

Insects & Diseases
• Common insects: Spotted and striped cucumber beetles, vine borers and squash bugs
• Insect control: Row covers and/or apply Pyrethrin
• Moschata species are resistant to vine borer
• Common diseases: See chart below; diseases vary by region
• Disease prevention: 3-4 year crop rotation, and fungicide applications

Harvest & Storage
• Summer squash: Harvest regularly when fruits are young to keep plants productive
• Winter squash: Leave on vine until fully mature, rinds should be firm
• When winter squash is mature cut stem leaving 2-4 inches remaining, gently wash in sanitizing solution; 10 parts water to 1 part bleach
• For best results move winter squash to a warm dry area 80-90°F to cure; see each type (below) for curing requirements
• Store winter squash at 50-60°F with 50-75% relative humidity and good air circulation

Curing Requirements
• Acorn: Curing not required; Stores 2-3 months
• Buttercup: Cure 10-14 days; Store 1-2 months for best flavor; Will keep 4-6 months
• Butternut: Cure 10-14 days; Store 1-2 months for best flavor; Will keep 4-6 months
• Delicata: Curing not required; Stores 2-3 months
• Hubbard: Cure 10-14 days; Store 1-2 months for best flavor; Will keep 4-6 months
• Kabocha: Cure 10–14 days; Store 1–2 months for best flavor; Will keep 4–6 months
• Mini-Hubbard: Curing not required; Stores 2-3 months
• Spaghetti: Curing not required; Stores 2-3 months

Approximate seeds per gram
• Acorn, Butternut, & Delicata: 9-16
• Buttercup & Hubbard: 3-7
• Green, Gray Summer: 7–9
• Kabocha: 5–7
• Patty Pan: 7-10
• Romanesco: 4–5
• Spaghetti: 4-7
• Yellow Summer: 7-15
• Zucchini: 5-8


HR indicates high resistance.
IR indicates intermediate resistance.
CMV | Cucumber Mosaic Virus
PM | Powdery Mildew
PRV | Papaya Ringspot Virus
SLCV | Squash Leaf Curl Virus
WMV* | Watermelon Mosaic Virus
ZYMV | Zucchini Yellow Mosaic Virus
* Numbers indicate specific disease race.

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