Promise is an F1 hybrid cabbage that delivers reliable, storage-quality heads in 96 days across hardiness zones 1 through 13. This compact variety thrives in cool-season gardens and produces dense heads that store exceptionally well when harvested at the right stage. With its frost-hardy nature and disease resistance to Fusarium yellows, Promise combines practical resilience with the consistent performance that market gardeners and home growers depend on.
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Moderate
1-13
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High
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Promise cabbage earns its name through unwavering reliability: relatively young, still-green heads store far longer than mature ones, holding their quality for months under proper conditions. The compact growth habit means you can space plants closer together than sprawling varieties, maximizing yield in smaller gardens. Its F1 hybrid genetics ensure uniform maturity across your planting, so you harvest a synchronous crop rather than staggered heads over weeks.
Promise cabbage is grown primarily for fresh use and extended storage. Harvest young heads while still actively growing for the best storage life, keeping them in cool conditions for winter use. It suits fresh slaws, braised preparations, and fermented applications where firm, crisp texture matters.
No timeline data available yet for this variety.
Sow 2 seeds per cell in 50- or 72-cell plug flats, or 3-4 seeds per inch in 20-row flats at a depth of 1/4 inch. Keep soil temperature above 75 degrees Fahrenheit until germination occurs, then reduce air temperature to around 60 degrees Fahrenheit. Seedlings will be ready to transplant in 4 to 6 weeks.
Transplant 4 to 6 weeks after sowing, spacing plants 12 to 18 inches apart in rows set 18 to 36 inches apart. For an early spring crop, transplant as soon as soil can be worked. Promise is frost-hardy, so it tolerates light frosts once established.
Harvest Promise cabbage while heads are still relatively young and actively growing, as younger heads store far better than fully mature specimens. Wait until heads feel firm and dense when gently squeezed, typically around 96 days from transplanting. Cut heads at the base with a sharp knife, removing any yellowed or damaged outer leaves before storage. Only store disease-free heads.
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