How to Grow Large-leaf Korean Red
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Large-leaf Korean Red
Perilla frutescens var. crispa
herbLarge-leaf Korean Red is a distinctive Asian herb with deep burgundy, crinkled leaves and a bold, aromatic flavor profile. Known in Korean cuisine as 'kkaennip' or 'perilla leaf,' it's prized for its unique minty-spicy taste with subtle licorice notes. The plant grows quickly and abundantly, making it an excellent addition to both culinary and ornamental gardens.
When should you plant Large-leaf Korean Red in your zone?
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Example Large-leaf Korean Red timeline · Pittsburgh, PA (Zone 6b)
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Plant Large-leaf Korean Red
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 Large-leaf Korean Red
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Large-leaf Korean Red dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9; can be grown as annual in cooler zones
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Seedling
2-3 weeksTiny seedlings with first true leaves appearing; cotyledons are small and pale
Keep soil consistently moist; maintain warm temperatures (70-75°F ideal); provide bright indirect light; thin seedlings to proper spacing once 2-3 true leaves appear
Vegetative Growth
4-8 weeksRapid expansion of distinctive crinkled, deep burgundy leaves; plant becomes bushy and full
Pinch off flower buds if you want to extend leaf harvest; apply light fertilizer every 2-3 weeks with balanced NPK; ensure consistent moisture; stake if needed in windy areas
Pre-flowering
2-4 weeksPlant reaches full size; leaf production slows as plant prepares to flower; leaves may become thicker
Continue regular harvesting to encourage bushier growth and delay flowering; increase watering frequency in hot weather; monitor for pests
Flowering
3-6 weeksSmall purple or white flowers appear on terminal spikes; energy shifts from leaf to seed production
Pinch off flowers if prioritizing leaf harvest; allow some to flower for seed production and wildlife benefit; continue watering regularly
Seed Production & Decline
2-4 weeksSeeds mature in small round capsules; overall plant vigor declines; leaves may become tougher
Collect seeds if desired before they drop; allow some self-seeding if you want volunteer plants next year; pull spent plants; can collect seeds for next season
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick in early morning; use neem oil spray; plant trap crops nearby; apply kaolin clay for prevention
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Spray strong water stream to dislodge; use insecticidal soap; introduce ladybugs; neem oil application
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Yellow sticky traps; spray with neem oil or insecticidal soap; ensure good air circulation
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Increase humidity and mist leaves; spray with water; use neem oil; ensure adequate watering
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Hand-pick; use row covers when young; apply spinosad; encourage beneficial insects
Uses
Korean Cuisine & Ssam
CulinaryLarge-leaf Korean Red is the authentic 'kkaennip' used as a wrap for grilled meats (ssam) in Korean dining. Its bold, slightly spicy-minty flavor complements grilled beef, pork, and vegetables perfectly. [source]
Flavor Enhancement & Garnish
CulinaryFresh leaves add distinctive flavor to sushi, sashimi, tempura, and Asian noodle dishes. Can be used raw or lightly cooked to preserve its unique taste. [source]
Traditional Asian Medicine
MedicinalPerilla has been used in traditional Chinese and Japanese medicine for thousands of years to aid digestion, reduce inflammation, and support respiratory health. The plant contains perillaldehyde and other beneficial compounds. [source]
Natural Fragrance & Flavoring
HouseholdThe aromatic leaves can be used to infuse oils, vinegars, or make herbal teas. Fresh or dried leaves add an exotic flavor to pickles and preserves. [source]
Pollinator Support
WildlifeFlowering plants attract bees, butterflies, and other beneficial insects, making it valuable in pollinator gardens. The seeds also provide food for birds. [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 (usually 6-8 weeks from seed); pinch off the top 2-3 leaf pairs to encourage bushiness; harvest regularly to prevent flowering and extend production; best flavor when picked in early morning after dew dries; leaves can be harvested throughout growing season; for winter storage, freeze leaves whole or make into pesto; in warm zones, can continue harvesting into fall
Fun Facts
- 🌱 Large-leaf Korean Red perilla has been cultivated in East Asia for over 2,000 years and is considered an essential ingredient in Korean cuisine, with entire perilla leaf farms dedicated to its commercial cultivation.
- 🌱 The plant's deep burgundy color comes from natural anthocyanin pigments (the same compounds that make blueberries blue), which intensify with more sun exposure.
- 🌱 Perilla is considered invasive in some North American regions due to its aggressive self-seeding, so gardeners should deadhead flowers unless intentionally allowing seed spread.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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