For rhizomes, check with: Pacific Coast Wasabi Richters Herbs Sage Garden Herb Farm Reportedly also available in the past at some nurseries in the Lower Mainland and on the Island.
The plants are fairly common to buy; I have seen them available for purchase at the following places: Garden Works (Mandeville & lougheed locations), Triple Tree (Maple Ridge - this is where I purchased mine), Phoenix Perennials (Richmond - I know they had some last fall), Art Knapps (Poco), Art's Nursery and Cedar Rim (both in Langley) Might be a little early right now but give it a month or so and they should again be available
Aquatic to semi-aquatic at Triple Tree and Garden Works, Phoenix they had theirs in pots located with the herbs but the soil was kept wet. I can't remember at the other garden centers. I grew mine in a pot for several years and just kept the soil wet. I also tried growing one in an "aquatic" environment - planted in a mesh lined basket that sat in a tub of water. Both grew at about the same rate, and then I lost both plants during the harsh winter of 2013.
