Chaste tree (Vitex agnus-castus) blooms throughout the Chicago Botanic Garden from July through October. Similar to butterfly bush (Buddleja davidii) in the Chicago area, chaste tree is considered a dieback shrub. During winter, stems die to the ground, but the roots survive and produce new growth the following spring. Chaste tree is butterfly-friendly, with fragrant blue spikes against greyish-green leaves, and it is best planted in spring, in full sun and well-drained soil.
July - August, September - October
Screen/Hedge, Bedding or Border, Specimen Plant
Attracts Butterflies, Resistant To Deer