How to Grow Azurite
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Azurite
Brassica oleracea var. acephala (Lacinato group)
vegetableAzurite is a stunning dark blue-green kale variety with deeply lobed, textured leaves that resemble ocean waves. This cold-hardy brassica is prized for both its striking ornamental appearance and its nutritious, tender leaves with a mild, slightly sweet flavor. It's an excellent choice for gardeners seeking visual appeal combined with culinary versatility.
When should you plant Azurite in your zone?
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Example Azurite timeline · Pittsburgh, PA (Zone 6b)
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Plant Azurite
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Azurite
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Azurite dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; prefers cooler seasons and improves in flavor after frost
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Get my Azurite timeline →Growth Stages
Seedling
2-3 weeksTiny seedlings with cotyledons and first true leaves emerging; delicate and pale green
Keep soil consistently moist but not soggy. Provide bright light to prevent leggy growth. Maintain temperatures between 60-70°F.
Vegetative Growth
3-4 weeksPlant develops 4-6 true leaves with characteristic lobed texture; grows increasingly bushy and dark blue-green
Thin seedlings to proper spacing. Water consistently. Begin feeding with balanced fertilizer every 2-3 weeks. Mulch to retain moisture and suppress weeds.
Leaf Development
3-4 weeksRapid leaf expansion; deeply textured, lacey blue-green foliage becomes increasingly prominent; plant continues vertical growth
Continue regular watering and feeding. Watch for pests, especially cabbage worms and flea beetles. Provide wind protection if needed.
Maturation
2-3 weeksPlant reaches full size with abundant mature leaves; foliage is dense, deeply textured, and visibly darker; extremely cold-hardy at this stage
Reduce nitrogen fertilizer to avoid excess leafy growth. Begin harvesting outer leaves. Plant becomes sweeter after light frosts.
Harvest & Continued Production
4-12 weeks depending on climatePlant yields harvestable leaves continuously; flavor improves in cool weather; can be harvested throughout fall and winter in mild climates
Harvest outer leaves first to encourage continued production. Remove any yellowing or damaged leaves. Light feeding every 3-4 weeks supports ongoing growth.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Row covers on young plants; hand-pick caterpillars; spray with spinosad or Bacillus thuringiensis (Bt); encourage beneficial wasps
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Use floating row covers; diatomaceous earth; neem oil spray; reflective mulches; ensure adequate moisture to prevent stress
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Strong water spray to dislodge; insecticidal soap; neem oil; encourage natural predators like ladybugs and lacewings
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Yellow sticky traps; reflective mulch; neem oil; insecticidal soap; improve air circulation around plants
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and
(Gastropoda class)
Hand-pick at dusk; beer traps; copper barriers; diatomaceous earth; encourage ground beetles and toads; remove debris hiding spots
Uses
Nutritious Leafy Green
CulinaryAzurite kale is rich in vitamins A, C, K, and minerals like calcium and iron. It can be eaten raw in salads, blended into smoothies, sautéed, steamed, or added to soups and stews. Its mild flavor and tender texture make it more approachable than tougher kale varieties. [source]
Anti-inflammatory and Antioxidant Properties
MedicinalKale contains glucosinolates and other phytonutrients with potential anti-cancer and anti-inflammatory effects. Regular consumption may support cardiovascular health, bone strength, and immune function. [source]
Kale Chips and Crisps
CulinaryToss leaves with olive oil and seasonings, then bake until crispy for a nutritious snack. The texture of Azurite's deeply lobed leaves creates particularly satisfying chips with varied crispness. [source]
Garden Ornament and Cut Flower
HouseholdAzurite's striking blue-green, textured foliage makes it decorative in garden beds and borders. The dramatic leaves are prized by flower arrangers and are long-lasting in fresh arrangements. [source]
Pollinator and Beneficial Insect Support
WildlifeIf allowed to bolt, Azurite produces beautiful yellow flowers highly attractive to bees, butterflies, and other pollinators. This supports garden biodiversity and ecosystem health. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Begin harvesting outer leaves once plant reaches 12 inches tall (around day 50-60). Pinch or cut leaves from the bottom and sides, leaving the center to continue growing. Harvest in cool morning hours for best flavor. Young leaves are more tender; older leaves become tougher but remain nutritious. Flavor improves dramatically after the first frost. Kale can be harvested continuously for months in cool climates. For maximum sweetness, wait until temperatures drop below 40°F.
Fun Facts
- 🌱 Azurite's color deepens and leaves become sweeter after exposure to frost; the plant converts starches to sugars as a natural antifreeze mechanism.
- 🌱 Kale is one of the longest-producing brassicas; a single plant can provide continuous harvests for 6-12 months in mild climates or through multiple seasons in cold areas.
- 🌱 Azurite is a relatively recent heirloom-style variety bred to combine the ornamental qualities of decorative kale with the superior flavor and tenderness of culinary lacinato (dinosaur) kale types.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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