Squash Summer Costata Romanesco Organic HEIRLOOM Seeds

Squash Summer Costata Romanesco Organic HEIRLOOM Seeds

Cucurbita pepo

Item #3175

55 days. Have you felt overwhelmed with summer squash in years past? 'Costata Romanesco' delivers a manageable harvest of high-quality, fluted fruits with nutty, complex flavor and firm texture. The striped and mottled skin stays tender even to 18", though in Italy they are picked at 4"–5" with the blossoms still attached. Large production of male blossoms for stuffing (see inside packet for more information).

This packet sows up to 4 mounds.

Seedling Image

Days to Emerge:
5-10 days

Seed Depth:
1/2"-1"

Seed Spacing:
3 seeds
per mound

Mound Spacing:
3'-4'

Thinning:
When 3 leaves,
thin to 1 plant
per mound


When to sow outside: RECOMMENDED. 1 to 2 weeks after average last frost, and when soil temperature is 70°‒85°F.

When to start inside: Not recommended except in very short growing seasons, 2 to 4 weeks before transplanting. Roots are sensitive to disturbance; sow in biodegradable pots that can be planted directly into the ground. Transplant when soil temperature is at least 60°F.

Harvesting: Harvest frequently to increase yield; squash seem to get monstrous overnight. While edible at almost any size, seeds are less developed in young fruit, therefore more tender. Using a knife or clippers, cut squash off including some of the stem. By including stem, the fruit is sealed and less likely to mold or dry out.

Artist: Meredith Feniak

Check out our Squash Sow and Grow Guide!



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