wasabi powder is a gastric stimulant so useful in digesting fatty foods and is also good for correcting imbalances. wasabi powder contains more vitamin C than orange or lemon. Whether slathered on a sub sandwich as a condiment, stirred into a cocktail sauce for seafood, or spooned as a dressing over meat or fish, wasabi powder is the go-to herb for pungent flavor. A member of the same family as mustard and radish, wasabi powder is an herbaceous perennial that grows to about two feet in height. The plant prefers cool to moderate climates, full sun and moist (but not wet) soil. Thanks to its perfect weather and potash-rich soil, the Dalian , northeast of China grows best quality of horseradish in China.