Curry plant is a curious and interesting little herb that may not be in the top five or ten choices on your herb wish list but definitely deserves some consideration.Fast Facts About Curry Plant Helichrysum italicum or curry plant is a tender perennial. Outdoors, it does best in U.S. zones 8 to 11. It can't tolerate a hard frost. It prefers soil that drains well, full sun and warm conditions.