Chaste tree (Vitex angus-cestus), also called chasteberry, with its striking lavender-blue flowers which appear on spikes in the fall, is the perfect heat-loving, drought-tolerant addition to an open ...

Purple is popping out all over Houston. The vitex tree is having its moment. Vitex agnus-castus has many common names, including chaste tree, Texas lilac, lavender tree — even hemp tree for the ...