Ripbor

Family: Brassicaceae Vegetable

Lush, tightly curled fronds unfurl in Ripbor with a vivid, cool-toned green that feels almost velvety to the eye—dense texture, crisp bite, and a pleasantly sweet edge.

Leaves hold their shape beautifully through the season, offering an elegant, ruffled silhouette that’s as satisfying in the bowl as it is in the garden. Grow Ripbor for standout leafy greens that shine in roasted dishes, fresh salads, and hearty sautés, with extra depth when folded into sauces and braises.

Light: Full SunMaturity: 55 DaysHabit: Rosette

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	Jun 12th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	55
Sun Requirements	Full Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	45
Min Soil Temp (°F)	40
Min Night Temp (°F)	30
Harden Off (days)	6

Culinary Notes

Chef's Note

Ripbor’s tight curls and dense leaf structure give you a crisp, ruffled bite that stands up to heat without turning to sludge. Use it where you want green snap—roast hard for blistered edges or stir into reductions so it turns silky at the edges while staying pleasantly chew-forward.

Best Uses

hot, massaged salad—dress lightly and eat immediately for maximum crunch
sheet-pan roasting until the edges blister and go pleasantly chewy
garlicky-free braises and sautés for sturdy greens that don’t collapse into mush
folded into creamy pasta or reduced pan sauces for grip and body

Flavor Profile

cool, sweet-leaning bitterness crisp, fibrous chew with tender inner ribs savory, cabbage-greens snap holds flavor through high heat

Kitchen Pairings

lemon olive oil parmesan white beans anchovy chili flakes

Frequently Asked Questions

How do I manage clubroot and cabbage aphids on Brassica oleracea var. viridis (Winterbor-type greens)?

Clubroot shows up as swollen, clubbed roots and sudden wilting; remove infected plants and don’t replant brassicas in that spot for several years. For cabbage aphids, check the undersides of leaves often and spray a strong jet of water to knock them off, then use insecticidal soap if numbers persist. Avoid over-fertilizing with nitrogen because it makes aphid outbreaks worse.

How often should I water Winterbor greens during their main growth (about weeks 3–8) to prevent bitter leaves?

Keep soil consistently evenly moist, aiming for about 1 inch (2.5 cm) of water per week, with more frequent watering during hot spells. Water deeply so moisture reaches the root zone, then let the top 1 inch of soil dry slightly before watering again. Irregular watering and drought stress commonly leads to tougher, more bitter leaves in Brassica greens.

When are Winterbor-type greens (Brassica oleracea var. viridis) ready to harvest, and how should I pick them?

Harvest when plants reach about 55 days from sowing and the heads/rosettes are firm with fully developed leaves, typically when outer leaves are large and crisp. You can start with outer-leaf “cut-and-come-again” harvests, removing the largest outer leaves and leaving the center to regrow; stop harvesting on very heavy heat for best texture. For best flavor and tenderness, pick in the cool part of the day and don’t leave leaves standing wet for long after harvesting.