Wasabi Orachi (japonica

wasabi Japonica , Orochi  varieties are suitable for soil planting - these are not water varieties.
Orochi is a multi stemmed variety. They prefer cooler areas for planting with 70 - 80 percent shade. Water regularly but don’t over water them.
The plant can be harvested after around 18 months - two years and smaller plants removed from the main stem for replanting.

You can plant them in the bag, container, 
The entire plant can be eaten - the main stem grated for wasabi paste for flavour on all meats and fish. Leaves can be used for salads and for pickling. 
and are now over year.

Grow condition 70-80% shade ,A good soil less  potting mix.