Wasabi (Wasabia japonica) packet of 10 seeds
$8.95
Please note: One packet only per order. Limited harvest 2024. If you get an e-mail saying this is back in stock and you cannot buy it, it is because it already sold out. Please remember to hit “waitlist” again, we will have more. Richo
Family: Mustard (Brassicaceae)
Hardy to Zones 7 to 12
(Eutrema japonicum) Herbaceous perennial native to mountain streams of Japan. This is the true wasabi. These cold-stored seeds must be planted in potting soil, about 1/2 inch deep, and mulched with coir or peat, and placed outdoors in COOL MOIST SHADE (not soaked in water or in running water or hydroponic setup, etc.) 5 to 8 month germination times are typical. Germination of this summer or fall planted seed is in the very early spring. By March, the seedlings will have formed 2 sets of true leaves and its time to pot them up. For example, I planted wasabi seeds 6/24/19 and they emerged on 2/16/20–nearly an 8 month induction period. In colder climates, where the propagation beds may be frozen hard, germination will occur later, usually in April or perhaps as late as May. Please note that hard freezing of the germination beds or flats may prove to be harmful for the seed, so if winter temperatures go below 20 degrees F (Zone 7), greenhouse culture is advised. Plant prefers aquaculture or shaded beds of compost, misted daily. Space plants 1 foot apart.
10 Seeds per packet, open pollinated, untreated, no gmo’s
Out of stock
Cliff (verified owner) –
In the fall of 2018 my partner and I planted seeds directly into the soil alongside streams running through our forest. I never found any Wasabi until I noticed it last week growing in one of the sites we planted. I hope in the winter the wasabi is sheltered by the snow and warmed by the moving groundwater, oblivious to the -25F temperature outside.
I do wish we had followed your seed starting instructions. Definitely want to transplant next time. Don’t have a greenhouse however. Do you think we could use your propagation technique in our basement?
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Vince Sylvester –
My Wasabi from seed are doing great. Thanks Richo for all your help!
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