Giant yellow hyssop is a robust member of the mint family. It can grow to be 3-6ft tall, preferring full or part sun with average to wet conditions (sand, loam). The species is native to moist open woods, thickets and woodland edges. Use sparsely in a small home garden. It produces greenish-yellow flowers that bloom June-Oct, attracting bees, butterflies, and songbirds. Comes in a 4 inch pot.