How to Grow Japanese Purple Perilla
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Japanese Purple Perilla
Perilla frutescens var. crispa
herbJapanese purple perilla is an ornamental and culinary herb with deep purple, crinkled foliage and a distinctive anise-like flavor. This fast-growing annual is prized in Asian cuisine for its aromatic leaves and is equally valued as a striking ornamental garden plant. The plant produces delicate lavender to white flowers in late summer.
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Example Japanese Purple Perilla timeline · Pittsburgh, PA (Zone 6b)
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Plant Japanese Purple Perilla
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 Japanese Purple Perilla
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Japanese Purple Perilla dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-10; grows as a vigorous annual in cooler zones
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Germination & Seedling
2-3 weeksTiny seedlings emerge with small, slightly serrated cotyledons. True leaves develop their characteristic deep purple color and crinkled texture within 2-3 weeks.
Keep soil warm (65-75°F) and consistently moist. Provide bright light indoors to prevent leggy growth. Thin seedlings to proper spacing once 2-3 true leaves appear.
Vegetative Growth
4-6 weeksPlant rapidly expands with multiple stems, producing increasingly larger purple leaves with deeply wrinkled, textured surfaces. Growth is vigorous during warm weather.
Pinch growing tips early to encourage bushiness. Water regularly and apply balanced fertilizer every 2-3 weeks. Perilla self-seeds readily; remove unwanted seedlings or deadhead flowers if you don't want volunteers.
Leaf Production Peak
4-8 weeksPlant reaches maximum foliage density with full, bushy form and large, deeply ruffled purple leaves at peak flavor and ornamental quality.
Begin harvesting outer leaves regularly to encourage continued production. Frequent harvesting delays flowering and maintains tender foliage. Monitor for pests during peak growing season.
Flowering
4-6 weeksSmall, pale lavender to white flowers appear in terminal spikes. Foliage becomes slightly coarser as the plant diverts energy to seed production.
Deadhead flowers to extend leaf production, or allow some flowers to remain for ornamental value and seed collection. Cut flower spikes for fresh arrangements if desired.
Seed Maturation & Decline
Until frostFlowers develop into small seeds enclosed in papery seed pods. As frost approaches (in colder zones), the plant weakens and yellows.
Allow seed pods to mature fully if saving seeds. Leave a few plants to self-seed for next year's volunteers, or collect seeds in paper bags. Remove spent plants after frost.
Common Pests
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Hand-pick in early morning; use row covers on young plants; apply neem oil if infestation is severe
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Spray with water to dislodge; increase humidity; apply miticide if population becomes unmanageable
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Yellow sticky traps; spray undersides of leaves with insecticidal soap; neem oil effective
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Strong water spray; introduce ladybugs; apply insecticidal soap or neem oil if needed
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and
Hand-pick in evening; copper barriers; diatomaceous earth around base; beer traps
Uses
Sushi & Japanese Cuisine
CulinaryJapanese purple perilla leaves (called 'shiso') are a staple in Japanese and Asian cuisines, used as a fresh herb in sushi rolls, sashimi, tempura, and cold noodle dishes. The leaves add a distinctive anise-mint flavor and are valued for both taste and their role in traditional Japanese dining. [source]
Pickled & Preserved
CulinaryPerilla leaves are commonly pickled or salted (umeboshi) and used as a condiment or garnish. They can also be frozen or dried for year-round use in Asian recipes. [source]
Traditional Medicine & Digestive Health
MedicinalPerilla has been used in traditional Chinese and Japanese medicine for centuries to support respiratory health and digestion. The leaves contain perillaldehyde and other aromatic compounds that may have anti-inflammatory and antioxidant properties. [source]
Garden Ornament
OrnamentalThe dramatic deep purple, heavily ruffled foliage makes Japanese purple perilla an eye-catching ornamental plant for beds, borders, and containers. The plant adds striking color contrast to green-leaved gardens and pairs beautifully with other foliage plants. [source]
Culinary Oil & Flavoring
HouseholdPerilla seed oil is extracted and used in Asian cooking for its nutty flavor and nutritional benefits. The oil is rich in omega-3 alpha-linolenic acid and is used in dressings and traditional Asian preparations. [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. Pinch off young leaves from the tip for tender, tender foliage with maximum flavor. Harvest regularly (2-3 times weekly) to encourage bushiness and delay flowering. Leaves are best harvested in the morning after dew dries. Use fresh immediately or freeze in airtight containers. Cut entire stems for larger harvests. In Asian cuisine, harvest leaves at peak tenderness (45-60 days); they become coarser and more strongly flavored as plant matures.
Fun Facts
- 🌱 Japanese purple perilla is called 'shiso' in Japan and 'perilla' or 'kkaennip' in Korean cuisine; it is deeply embedded in Asian culinary traditions dating back centuries and is sometimes called the 'Japanese mint.'
- 🌱 The plant is an enthusiastic self-seeder and can spread prolifically in warm climates; in some regions it is considered invasive, so gardeners are advised to deadhead spent flowers unless they want abundant volunteers.
- 🌱 Perilla leaves are said to have a complex flavor profile that combines anise, mint, and citrus notes; the flavor becomes more intense and herbaceous as the plant matures, and young tender leaves are considered more delicate and desirable.
Gardening Terms
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