Vitex agnus-castus [blue form]

Common name(s): chaste tree, chasteberry, monk's pepper

Description: a small deciduous tree that blooms massive clusters of fragrant, blue flowers in summer. It is an excellent pollinator plant and often ranks in lists and articles of "top 10 bee plants" published by all sorts of reputable and unreputable sources alike. 

Height: to 15 ft. Spread: to 10 ft.

Position: full sun, tolerant of poor, dry soil

Uses: medicine, basket-making, and to attract pollinators

Winter Hardiness: 0 F and below

Drought: adapted to 4 months of summer drought