How to Grow Shichimi Togarashi
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Shichimi Togarashi
Capsicum annuum var. acuminatum
vegetableShichimi togarashi refers to a Japanese seven-spice blend traditionally made from red chili peppers, but the primary plant component is a specific cultivar of hot pepper grown for this spice mixture. The plant produces small, thin-walled, intensely hot red peppers that are dried and ground into the characteristic spice blend.
When should you plant Shichimi Togarashi in your zone?
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Example Shichimi Togarashi timeline · Pittsburgh, PA (Zone 6b)
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Plant Shichimi Togarashi
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 Shichimi Togarashi
Around Jul 16≈ 90 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Shichimi Togarashi dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-11, with best results in zones 10-11; can be grown as an annual in cooler zones with protection
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Get my Shichimi Togarashi timeline →Growth Stages
Seed Germination
7-14 daysSeeds are small and require warm conditions to sprout. Tiny cotyledons emerge after 7-14 days.
Use seed-starting mix, keep consistently moist and warm (75-85°F), provide bottom heat if available. Don't let seeds dry out. Maintain 12+ hours of light daily.
Seedling
3-4 weeksFirst true leaves appear; plants develop 2-4 inches of growth with thin stems and small leaves.
Provide bright light (grow lights 3-4 inches above seedlings), maintain warm temperatures (70-80°F), keep soil moist. Thin to strongest seedlings if crowded. Begin very light fertilization at half-strength.
Vegetative Growth
4-8 weeksSturdy plants with branching stems develop multiple sets of leaves; no flowers yet.
Transplant to larger containers or garden when 4-6 inches tall and frost danger has passed. Maintain warm conditions (70-85°F), full sun, consistent moisture, and balanced fertilization every 2 weeks. Prune growing tips to encourage bushier growth.
Flowering & Fruiting
6-10 weeksSmall white or pale purple flowers appear along stems, followed by development of small, slender green peppers that mature to bright red.
Maintain consistent watering and moderate fertilization with higher phosphorus for fruiting. Peppers require warm nights (65°F+) to set fruit. Mulch to retain moisture and keep roots warm. Hand-pollinate flowers if bee activity is low.
Harvest & Maturation
Ongoing, 3-4 months of active harvestPeppers fully mature to deep red color, thin-walled and intensely hot. Plants continue producing throughout warm season.
Pick peppers when fully red for drying. Wear gloves when handling—capsaicin oils are potent. Continue watering and fertilizing to encourage continued production. Prepare for drying process by hanging in warm, well-ventilated space.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use neem oil or insecticidal soap weekly if severe. Increase humidity to discourage mites.
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Spray with water; use insecticidal soap or neem oil. Encourage beneficial insects like ladybugs.
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Use yellow sticky traps; spray undersides of leaves with neem oil or insecticidal soap every 5-7 days.
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Remove and destroy infested peppers immediately. Use pheromone traps. In severe cases, apply spinosad.
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Remove infested flowers/buds; use blue sticky traps. Spray with insecticidal soap or neem oil if needed.
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Ensure excellent drainage and air circulation. Avoid overhead watering. Remove affected plant parts. Apply copper fungicide if necessary.
Uses
Shichimi Spice Blend
CulinaryThe primary use is dried and ground into the famous Japanese seven-spice condiment that flavors ramen, udon, tempura, rice bowls, and soups. The peppers provide intense heat and fruity pepper notes that distinguish authentic shichimi from generic hot pepper blends. [source]
Fresh Pepper Uses
CulinaryFresh peppers can be used in Asian cuisines for stir-fries, curries, and hot sauces. While primarily grown for drying, they add pungent heat to fresh dishes when available. [source]
Capsaicin Therapeutic Properties
MedicinalCapsaicin, the active compound responsible for the pepper's heat, has been studied for pain relief, metabolism boosting, and anti-inflammatory properties. Historically used in traditional medicine systems. [source]
Natural Pest Deterrent
HouseholdDried shichimi peppers and capsaicin extracts are used as natural rodent and insect repellents in gardens and storage areas due to their irritant properties. [source]
Bird-Friendly Crop
WildlifePepper plants produce flowers attractive to pollinators like bees and hummingbirds. Birds are unaffected by capsaicin and consume the ripe peppers, helping distribute seeds naturally. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Pick peppers when fully mature and deep red (typically 3-4 months from planting). For shichimi spice production, harvest when peppers are firm and glossy red. Wear gloves to avoid capsaicin irritation. Peppers can be harvested for fresh use or dried. To dry for spice: hang entire plants upside down or lay peppers on racks in a warm (80-100°F), well-ventilated, dark space for 2-4 weeks until completely brittle. Once dried, grind or blend with other spices (sesame seeds, nori seaweed, poppy seeds, citrus peel, ginger, and salt) to create authentic shichimi togarashi.
Fun Facts
- 🌱 Shichimi togarashi literally means 'seven-flavor chili pepper' in Japanese, and the traditional blend includes not just the chili peppers but also sesame seeds, nori seaweed, poppy seeds, citrus peel (yuzu), ginger, and salt.
- 🌱 The capsaicin compound in these peppers creates heat that's actually a chemical burn sensation—it triggers pain receptors (TRPV1) rather than taste buds, which is why it feels hotter the more you expose yourself to it in one sitting.
- 🌱 Shichimi peppers are particularly popular in Japanese-influenced cuisine and have become a signature condiment in ramen shops worldwide, often served in small shaker bottles at the table so diners can customize their spice level.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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