How to Grow Aoba
Wikimedia Commons
Aoba
Perilla frutescens var. crispa
herbAoba, also known as Japanese perilla or shiso, is an aromatic Asian herb with deeply lobed, crinkled leaves that display a vibrant green color. It has a distinctive flavor profile combining mint, anise, and citrus notes, making it essential in Japanese, Korean, and Southeast Asian cuisines. The plant produces small purple or white flowers and is typically grown as an annual or short-lived perennial.
Looking for a specific variety?
When should you plant Aoba in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Aoba timeline · Pittsburgh, PA (Zone 6b)
-
Plant Aoba
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Aoba
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Aoba dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-10; grows best in zones 7-9 with warm, humid conditions
Sign up free to see if Aoba grows in your zone — and get a personalized planting timeline.
Get my Aoba timeline →Growth Stages
Seedling
2-3 weeksTiny seedlings emerge with delicate oval cotyledons; first true leaves are slightly lobed and tender
Keep soil warm (70-75°F) and consistently moist. Provide bright, indirect light. Thin seedlings to proper spacing once they develop 2-3 true leaves
Vegetative Growth
3-4 weeksPlant develops multiple stems with increasingly lobed, crinkled dark green leaves; characteristic aroma becomes noticeable
Pinch off top growth every 6-8 inches to encourage bushier plant and prevent early flowering. Maintain consistent moisture and feed with balanced fertilizer every 2-3 weeks
Branching & Leaf Development
3-4 weeksPlant becomes full and compact with dense foliage; leaves reach mature size (3-5 inches long) with maximum fragrance
Continue pinching to maintain shape and delay flowering. Harvest outer leaves regularly to encourage continued growth. Monitor for pests
Flowering
3-4 weeksTerminal flower spikes develop with small purple, pink, or white tubular flowers; leaf flavor may become slightly more astringent
Pinch off flower buds if you want to extend leaf harvest and maintain tender foliage. Allow some flowers to develop for ornamental value and seed production if desired
Seed Production & Decline
4+ weeks until frostFlowers mature to small round seeds in compact clusters; older leaves may yellow; plant energy redirects to seed development
Allow flowers to mature if you want seeds for next season. Otherwise, remove flowers. Plant may decline in fall; can be harvested until frost or composted
Common Pests
-
Spray with water to dislodge; apply neem oil or insecticidal soap if infestation is severe. Increase humidity around plants
-
Use yellow sticky traps; spray with neem oil or insecticidal soap; encourage natural predators
-
and
Remove by hand in early morning or evening; use beer traps; apply diatomaceous earth around plant base; remove garden debris
-
Handpick beetles and eggs; use row covers on young plants; apply neem oil if damage is severe
-
Spray with strong water stream; apply insecticidal soap or neem oil; introduce beneficial insects like ladybugs
Uses
Japanese and Asian Cuisine
CulinaryAoba leaves are essential in Japanese cuisine as garnish for sushi, sashimi, tempura, and soups. The leaves are also used in Korean perilla wraps (kkaennip) and Vietnamese cooking. Fresh leaves add distinctive aromatic flavor to summer dishes and cocktails. [source]
Umami & Flavor Enhancement
CulinaryThe essential oils in aoba leaves provide a complex flavor profile that enhances dishes without overpowering them. Used to garnish and flavor broths, rice dishes, and pickled vegetables. [source]
Traditional Medicine & Respiratory Support
MedicinalIn traditional East Asian medicine, aoba has been used to support respiratory health and digestive function. Contains perillaldehyde and other compounds with potential anti-inflammatory properties. [source]
Antioxidant & Anti-inflammatory Properties
MedicinalAoba leaves contain polyphenols and flavonoids with antioxidant activity. Traditionally used in herbal teas to support overall wellness and digestive health. [source]
Natural Dye Source
HouseholdRed perilla varieties produce natural dyes used in traditional textile dyeing. The leaves and stems can create various purple and reddish hues on natural fibers. [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 leaves once plant has 6-8 true leaves (usually 4-5 weeks after planting). Pinch off outer leaves or harvest entire sprigs from the top, working downward. Most tender and flavorful before flowering. Can harvest continuously throughout growing season. Peak flavor is in summer. Wash and use fresh, or dry leaves for later use. Flowers are also edible and can be harvested for garnish
Fun Facts
- 🌱 Aoba is called 'shiso' in Japanese and has been cultivated in East Asia for over 2,000 years. It appears in some of the oldest Japanese culinary texts and remains a staple garnish in traditional kaiseki cuisine.
- 🌱 The plant's distinctive aroma comes from perillaldehyde, a naturally occurring aldehyde compound that also gives it antimicrobial properties, which is why it was traditionally used as a food preservative in Asia.
- 🌱 Red perilla (Perilla frutescens var. frutescens) produces anthocyanin pigments that give it deep purple-red coloring and is sometimes called 'purple shiso.' It's used to color and flavor traditional pickled plums (umeboshi) in Japan.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Aoba planting timeline
Tell us your zip code and we'll calculate exactly when to start Aoba seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Aoba timeline →