Vitex is a woody perennial that can be as small as a bush or grow to be 15 feet tall. The leaves and flowers of this native Mediterranean plant exude tantalizing aromas. The plant prefers sun to part shade, dryish soils, and is drought tolerant. Scarify seed lightly with sandpaper, then sow in pots. Cover seed with a quarter inch of soil, tamp firmly and keep evenly moist and warm until germination, which takes about 18 days. Work up seedlings in pots for a year or two before transplanting out at a spacing of at least 15 feet apart.