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Lacinato Kale - organic growing guide with planting tips and harvest info
Beginner

Lacinato Kale

Brassica oleracea var. palmifolia

Family: Brassicaceae

Lacinato kale, also called Tuscan kale, dinosaur kale, or cavolo nero, has long, dark blue-green leaves with a bumpy, prehistoric-looking texture. It's more tender than curly kale with a sweeter, more delicate flavor. A favorite of chefs and gardeners alike.

Written by SuNutri Editorial Team, Master Gardeners

Days to Harvest

55-65 days

Sun Needs

Full Sun to Partial Shade (4-6 hours)

Water Needs

moderate

Germination Temp

70°F optimal

Seed Starting

Start Indoors

6 weeks before last frost

Germination

4-10 days

Seed Depth

1/4 to 1/2 inch

Light to Germinate

No

💡 Tip: Plant in late summer for best fall/winter harvest. Frost sweetens the flavor considerably.

Growing Conditions

Soil Type

Rich, well-draining soil with organic matter

pH Range

6 - 7.5

Spacing

18-24 inches between plants, 24-30 inches between rows

Companion Plants
BeetsCeleryOnionsHerbs

⚠️ Avoid planting near:

TomatoesStrawberries
History & Nutrition

History

Lacinato kale originated in Tuscany, Italy, where it has been grown since at least the 18th century. It's a traditional ingredient in Italian cuisine, particularly in ribollita, a Tuscan bread soup. "Cavolo nero" means "black cabbage" in Italian.

Nutritional Benefits

  • Extremely high in Vitamin K
  • Excellent source of Vitamins A and C
  • High in antioxidants
Climate & Temperature

Optimal Growing Temp

55°F - 75°F

Lacinato kale prefers cool weather (55-75°F) but is very cold-hardy. More tender than curly kale, making it better for raw use. Flavor sweetens significantly after frost.

Survival Range

10°F - 85°F

Can survive these temperatures

hardy
cool Season

Frost Note: Very cold-hardy, surviving temperatures to 10°F and lower. Frost dramatically improves sweetness. Can harvest through winter in many climates.

Best USDA Zones

Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9

Humidity

40-60%

Moderate humidity preferred. The bumpy leaf texture can trap moisture, so good air circulation helps.

Plant Size & Growth

Height

24-36 inches

Spread

18-24 inches

Growth Habit

upright

biennialRoot Depth: Moderate depth, 12-18 inches. Deep roots provide stability.
Growth Stages

Germination

4-10 days

Seeds germinate in cool to moderate soil. Direct sow or start indoors.

Seedling Stage

Duration: 3-4 weeks

True leaves: True leaves show distinctive dark color and bumpy texture early.

Transplant ready: Ready when 4-5 inches tall with dark, textured leaves.

Vegetative Growth

Duration: 6-10 weeks

Strap-like leaves grow in palm-like formation. Begin harvesting at 8-10 inches.

Harvest Maturity

Timing: 60-65 days from seed

  • Full-sized plant with dark, textured leaves
  • Sweetest after frost
Expected Yield

Per Plant

2-4 lbs over season

Per Square Foot

1-2 lbs at 18-inch spacing

Harvest Frequency

Harvest lower leaves every 1-2 weeks

Factors Affecting Yield

  • Cold tolerance extends harvest
  • Frost sweetens leaves
  • Regular picking
  • Soil fertility
Watering Guide

Seedling Stage

Keep consistently moist

Established Plants

Deep watering every 4-7 days, 1-1.5 inches per week

Preferred Method

Water deeply at soil level. Bumpy leaves can trap water, so base watering prevents disease.

⚠️ Critical Watering Periods

  • Transplant establishment
  • Hot weather
  • Active growth

Pro Tips

  • Consistent moisture keeps leaves tender for raw eating
  • Mulch helps retain moisture and moderate temperature
  • Water needs decrease in cool fall weather
  • Drought stress toughens otherwise tender leaves
Fertilizing Guide
moderate feederRecommended: 10-10-10 balanced fertilizer

Feeding Schedule

Organic Options

CompostFish emulsionBlood mealComposted manure

Top-dress with compost monthly for continuous production.

Container Growing
✓ Suitable for containers

Minimum Size

12 inch pot minimum

Recommended Size

14-16 inch pot

Depth Required

12 inches minimum

Best Varieties for Containers

Nero di ToscanaBlack Magic

Container Tips

  • Dramatic architectural form makes beautiful container focal point
  • Palm-like growth habit looks tropical despite cold tolerance
  • Needs deep container for tall upright growth
  • Water regularly and feed monthly
  • Can overwinter in protected locations
✂️
Pruning Guide
Pruning Optional

Why Prune

Harvest lower leavesEncourage new growthMaintain production

When

Begin harvesting when lower leaves reach 8-10 inches

How Often

Every 1-2 weeks throughout growing season

Technique

Harvest from bottom up, taking outer lower leaves first. The plant resembles a palm tree as it grows.

Remove

  • Lower mature leaves
  • Yellowed leaves
  • Damaged leaves

Keep

  • Top growing rosette
  • Upper developing leaves
Succession Planting

Plant Every

Spring and late summer plantings

Sowings/Season

2 main plantings

Duration

Plant spring for early harvest, late summer for fall/winter

Tips

  • Spring: 4-6 weeks before last frost for summer harvest
  • Late summer: 10-12 weeks before first frost for winter harvest
  • Fall plantings produce sweetest leaves
  • Single plants produce for many months
Frequently Asked Questions

Why is lacinato kale better for salads than curly?

Lacinato kale has naturally tender leaves that don't need massaging like curly kale. The texture is more delicate, the flavor is sweeter and less bitter, and the flat leaves are easier to chew raw. It's the gourmet choice for raw kale preparations.

What does "dinosaur kale" mean?

The name comes from the bumpy, reptilian-looking texture of the leaves, which some think resembles dinosaur skin. The dark blue-green color and prehistoric appearance earned it this nickname. It's also called Tuscan kale, cavolo nero, or black cabbage.

Can lacinato kale survive winter?

Yes! Lacinato kale is very cold-hardy, surviving temperatures well below freezing (to 10°F or lower). In zones 7+, it often overwinters for early spring harvest. Cold dramatically improves the flavor, making winter-harvested lacinato exceptionally sweet.

How do I use lacinato kale in Italian cooking?

Lacinato is essential for ribollita (Tuscan bread soup). Sauté with olive oil and garlic for a classic side dish. Add to pasta with white beans. Braise slowly with tomatoes and onions. It's a traditional ingredient in many Tuscan recipes.

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