How to Grow Cascadia Midnight Lettuce
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Cascadia Midnight Lettuce
Lactuca sativa var. crispa
vegetableCascadia Midnight is a dark green to deep burgundy loose-leaf lettuce variety with a crisp, tender texture and mild flavor. It's a cold-hardy cultivar bred for fall and winter growing, offering excellent bolt resistance and nutritional density. The dramatic coloring makes it both a culinary and ornamental addition to gardens.
When should you plant Cascadia Midnight Lettuce in your zone?
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Example Cascadia Midnight Lettuce timeline · Pittsburgh, PA (Zone 6b)
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Plant Cascadia Midnight Lettuce
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 Cascadia Midnight Lettuce
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Cascadia Midnight Lettuce dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; exceptional in cool-season zones 4-8
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Get my Cascadia Midnight Lettuce timeline →Growth Stages
Seedling
7-10 daysSmall leaves emerge; plant is 1-2 inches tall with 2-4 true leaves visible
Keep soil moist but not waterlogged. Provide bright light if growing indoors. Thin seedlings to proper spacing when 2-3 inches tall.
Vegetative Growth
20-30 daysRosette of outer leaves expands; plant is 4-8 inches tall with deepening color
Maintain consistent moisture and coolish temperatures (50-65°F ideal). Feed with balanced fertilizer every 2-3 weeks. Remove any damaged leaves.
Leaf Expansion
10-15 daysInner leaves continue to emerge; distinctive burgundy coloring intensifies; plant reaches 8-12 inches
Continue regular watering and feeding. Provide afternoon shade if temperatures exceed 75°F. Monitor for bolting indicators.
Harvest-Ready
5-10 days at peak qualityFull rosette of crisp, deeply colored leaves; burgundy interior leaves are fully developed and tender
Begin harvesting outer leaves as needed. Harvest in cool morning hours. Adequate spacing prevents disease; ensure air circulation.
Post-Harvest
7-14 daysPlant continues producing new leaves from center for continued harvesting; may bolt if temperatures rise
Continue harvesting outer leaves to encourage new growth. Remove bolting plants to prevent seed spread and garden resource depletion.
Common Pests
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Spray with strong water stream; use insecticidal soap or neem oil; encourage beneficial insects like ladybugs
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Remove by hand at night; use copper barriers; beer traps; encourage ground beetles; apply diatomaceous earth
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Use reflective mulches; spray with neem oil or insecticidal soap; plant resistant varieties
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Use yellow sticky traps; spray with neem oil; encourage parasitic wasps
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Hand-pick caterpillars; use Bacillus thuringiensis (Bt); row covers for prevention
Uses
Fresh Salads & Garnish
CulinaryCascadia Midnight's crisp texture and mild flavor make it ideal for raw salads, wraps, and garnishes. The striking burgundy coloring adds visual appeal to dishes and salad presentations. [source]
Cold-Season Greens
CulinaryIts superior cold hardiness allows for extended harvest seasons in fall and winter, providing fresh greens long after summer crops end. It tolerates light frosts better than many lettuce varieties. [source]
Nutritional Support
MedicinalDark red lettuce varieties are rich in anthocyanins and other polyphenols with antioxidant properties. Contains vitamins A, K, and folate that support overall health. [source]
Ornamental Edible Gardening
HouseholdThe dramatic burgundy coloring makes Cascadia Midnight attractive as an edible ornamental plant for decorative garden beds, containers, and landscape designs. [source]
Pollinator & Beneficial Insect Support
WildlifeIf allowed to bolt and flower, Cascadia Midnight provides nectar and pollen for bees and other pollinators, supporting garden biodiversity. [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 when plant is 6-8 inches tall, cutting leaves 1 inch above soil line to encourage regrowth. For full head harvest, cut entire plant at soil level when 10-12 inches tall. Harvest in early morning when leaves are crisp and full of moisture. Cascadia Midnight reaches peak tenderness and color in cool seasons (spring and fall); harvest before temperatures consistently exceed 75°F to prevent bolting and bitterness.
Fun Facts
- 🌱 Cascadia Midnight was developed by the University of California Davis breeding program specifically for cold-hardy, bolt-resistant performance in Pacific Northwest climates.
- 🌱 The deep burgundy color intensifies in cooler temperatures and with adequate sunlight—cool-season growth produces more vibrant coloring than warm-season cultivation.
- 🌱 Cascadia Midnight can produce harvestable leaves in as little as 30-35 days with succession planting, making it ideal for continuous harvest throughout fall and spring seasons.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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