Authentic Japanese wasabi is not for the faint of heat, nor for the timid gardener! Known to be a somewhat picky plant, if one accommodates its needs, you'll get to enjoy every single part of this plant as the whole shebang is edible!
Its leaves taste a bit like a mild pea shoot, with a nice, light spicy kick. The stems taste much the same, but with a satisfying crunch (I can imagine them being fantastic in salads), and the stalk/rhizome which sticks above the soil is what is grated for wasabi paste - beloved addition to sushi and noodle-based dishes.
- These plants need full shade - too much sun will cause it to wither, droop and eventually die. Keep these plants under the consistent shade of a tree, in a greenhouse under a shade-cloth, or in an area on your deck which gets full shade.
- Try to keep the soil of your wasabi plant moist, but not soggy, at all times. Think of the level of water you'd need for a bunch of lettuce - Wasabi's need will be pretty much identical. Always make sure that your wasabi is planted in well-draining soil, and if grown in a container, make sure that there is a way for excess water to drain out.
- For temperatures: Bring your plant inside, temperatures go above 24 degrees Celsius, or below 7 degrees Celsius.