It is great that you have purchased your wasabi plants grown on the island of Ireland. Your wasabi plant will be shipped by Ireland Express or Next Delivery Royal Mail. When you receive the wasabi plant, you should plant it into at least a 9 litre plant pot containing drainage holes at the bottom. Just place a pea shingle layer at the bottom of the pot to cover the drainage holes. This is to aid good drainage during the growing cycle of the plant. Then fill the pot with a mixture of fertile soil/compost to aid good root structure.
Most important to keep the plant out of direct sunlight and provide plenty of shade in the house or garden. Remember that wasabi flourishes in plenty of water but do not soak the plant over a long period. When planting makes sure that the wasabi plant’s crown is not covered and is visible just above the soil level in the pot. This is so that the leaves and stems’ growth is not hindered.
Wasabi plants are 100% edible
All grown on the Island of Ireland
In Japan, Wasabi is found growing under the trees on the mountain streams banks where they are not exposed to direct sunlight. Therefore, just find a shady corner in your garden, plant them by a fence or under trees and bushes. If you are lucky, you can plant wasabi on the surrounding edge of a pond in the shade.
If you are to grow wasabi in your home keep the soil/compost moist and feed your plant with a good plant food: for example, dilute seaweed solution.
The wasabi plant can grow quite big and project large-heart shaped leaves and stems to a length of up to about 50 cm hence leave adequate space between multiple plants.
During the growth of the plant, a rhizome will begin to form. Wasabi plants will survive temperatures down to -5ºC. Therefore, protect from extremely cold nights by covering them with a fleece.