Authentic Wasabia japonica (true wasabi) seeds, not substitutes.
Harvested from mature plants and carefully dried to preserve viability.
This crop is best suited for experienced or dedicated growers.

What’s included

1 pack of Wasabia japonica seeds
1 detailed guide to germinating wasabi seeds.

Choose your pack size in the Quantity variation ( 5/ 10 / 50 / 100/ 1000 seeds)
Photos show representative seeds and mature plants grown from similar stock

Seed condition & storage

Seeds are mature and carefully dried to preserve viability during storage and transit
Stored cool and dry prior to shipping
For best results, keep seeds refrigerated (not frozen) until sowing
No germination guarantee — please read the care notes before purchase

Germination & expectations

Wasabi seeds can be slow and variable in germination. Recommended steps:

Pre-soak seeds 12–24 hours in room-temperature water
Optional cold stratification: keep moist seeds in the fridge 4–8 weeks
Sow shallowly — surface-sow or cover very lightly (≤2 mm)
Keep consistently moist (not waterlogged) and cool
Germination time: 2–8 weeks; some seeds may take longer
Use a sterile, fine seed-starting mix and gentle airflow

Growing conditions & care

Light: bright shade to dappled sun
Soil: rich, humus-heavy, well-draining yet moisture-retentive
pH: slightly acidic to neutral
Water: constant moisture, avoid stagnant water
Containers: deep pots recommended in warm climates
Spacing: allow room for rhizome development
Time to harvest: months to 1–2 years for rhizomes; leaves can be harvested sooner

Troubleshooting

Low germination: try cold stratification and fresh seed-start mix
Damping off / mold: improve drainage, airflow, and use sterile medium
Yellowing leaves / poor growth: check soil fertility and maintain cool, shaded conditions

Shipping & handling

Seeds packaged to protect moisture and crushing during transit
Stored cool and dry before shipping
For international shipping or combined orders, message me before purchase

Returns & guarantees

No germination guarantee — seeds are sold as viable, fully matured, and properly dried
Contact me for damaged or incorrect items
Happy to share growing advice — message me with photos for help

Authenticity & provenance

Photos show mature plants and seeds representative of the stock
Message me for details about source and handling

Quick tips for success

Use a fine, sterile seed-start mix
Keep temperatures cool and moisture consistent
Be patient — wasabi rewards patience