Lacinato Rainbow

Family: Brassicaceae Vegetable

Feel the first brush of cool, ocean-deep color—Lacinato Rainbow kale unfurls into long, ridged leaves with a dramatic rainbow cast that shifts from deep blue-green to hints of violet and warm green highlights.

The texture is elegantly crisp and finely puckered, holding its shape beautifully for bold, flavorful greens. Grow it for fresh salads, vibrant sautéed greens, and richly colored sauces and soups—each harvest brings a striking, garden-to-bowl palette at about 55 days.

Light: Full SunMaturity: 55 DaysHabit: Rosette

Botanical illustration of Lacinato Rainbow

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 25th
Harvest Begins	Jun 19th
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

Lacinato Rainbow kale eats like it means business: ridged leaves deliver a crisp bite and a cool, ocean-deep bitterness that mellows quickly with fat and acid. It’s built for short heat—sauté or simmer just until glossy—so it stays toothsome instead of collapsing into a dull green blanket.

Best Uses

quick sautéed greens with a hot, glossy finish
massaged raw salads where the ridges keep a bite
blended into velvety soups and purées for a bright green body
folded into thick sauces where it can simmer briefly and still hold texture

Flavor Profile

cool, mineral-leaning bitterness crisp, finely puckered leaf texture that stays structured sweet-savory brassica savor with a clean green finish stands up to heat without going fully mushy

Kitchen Pairings

lemon olive oil parmesan white beans bacon or pancetta chili flakes

Frequently Asked Questions

What’s the most common disease or pest problem for Brassica oleracea var. viridis (Lacinato Rainbow) and how do I manage it?

Watch for cabbage worm/cabbage loopers and flea beetles, which chew irregular holes in Brassica leaves, especially in warm weather. Hand-pick larvae when you spot them and spray Bacillus thuringiensis (Bt) on the underside of leaves; for flea beetles, use a floating row cover right after planting and remove it only when the plants are well established. If you see yellowing with distorted growth, remove affected leaves promptly to reduce spread and avoid wetting foliage at watering time.

How often should I water Brassica oleracea var. viridis during the main growing phase?

During active leaf growth (after seedlings establish, roughly weeks 2–8), keep soil evenly moist but not soggy—aim for about 1 inch of water per week, split into 2–3 soakings if it’s hot or windy. Water at the base so the leaves stay dry, and don’t let the top 1 inch of soil fully dry out, since Brassica oleracea var. viridis can get tougher and more bitter when moisture swings.

How can I tell when Lacinato Rainbow is ready to harvest?

Harvest when leaves are mature but still tender—typically around 50–60 days after sowing for Brassica oleracea var. viridis. Look for firm, fully developed leaves with good size (often 8–12 inches), and pick outer leaves first to keep the plant producing. If the plant starts forming flower stalks or the leaves become noticeably tough, harvest immediately.