Jade Cross E

Family: Brassicaceae Vegetable

Sweet, jade-bright sprouts emerge along a sturdy stalk with a cool, crisp snap and a pleasantly mellow, nutty flavor that feels especially vibrant after autumn chill.

Jade Cross E forms tight, uniform heads with a deep green sheen and a tender, fine texture that holds beautifully for display and harvest. Grow it for abundant, reliable yields of classic Brussels sprouts—ideal for roasting, steaming, and turning into savory skillet sides, gratins, and tangy pickled accents.

Light: Full SunMaturity: 90 DaysHabit: Heading

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Mar 28th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 18th
Harvest Begins	Jul 17th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Heading
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	45
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	6

Culinary Notes

Chef's Note

Jade Cross E leans sweet and nutty with a tight, tender leaf that roasts into crisp edges while staying cohesive, not woody. It takes well to fat and acid—think browned butter, Parm, and a quick vinegar or balsamic snap—so the flavor pops rather than turns cabbage-green.

Best Uses

high-heat roasting for caramelized edges without turning hollow
steam-then-sauté in browned butter for a nutty, glossy skillet side
shred into warm salads with a tangy vinaigrette to keep the bite
quick pickle or brine for sharp, crunchy autumn accents
gratins where the leaves soften into creamy layers

Flavor Profile

cool-crisp snap mellow nutty sweetness tender, fine brassica texture savory, slightly green finish

Kitchen Pairings

brown butter garlic balsamic vinegar Parmesan shallot smoked bacon

Frequently Asked Questions

What pest or disease commonly affects Brassica oleracea (cabbage-type) like Jade Cross E, and how do I control it?

A frequent problem is clubroot (a soil-borne disease) that causes swollen, distorted roots and stunted growth. Before planting, avoid fields where brassicas grew recently, and keep soil slightly drier between waterings to discourage infection; remove and discard affected plants early. If you see the classic root galls, don’t compost them—bag and trash—and rotate brassicas away from that bed for several years.

How often should I water Brassica oleracea during its main growth phase?

During head formation, keep the soil evenly moist, not waterlogged—about 1 inch of water per week, adjusted for rainfall. Water deeply so moisture reaches the root zone, then allow the top 1–2 inches of soil to dry slightly before watering again. Consistent moisture helps prevent head stress and cracking while maintaining firm growth.

How can I tell when Jade Cross E (Brassica oleracea) is ready to harvest?

Harvest when the heads feel firm and solid to the touch and reach the expected size for your planting window. Leaves should be largely mature with minimal loose, flexible “give” in the head; if the head feels springy, give it more time. For best quality, harvest before the weather turns very hot or after prolonged stress causes loose heads.