The vitex chaste tree, also known as the chasteberry, monk's pepper, or Texas lilac, has the scientific name Vitex agnus-castus. It is a hardy, fast-growing flowering shrub that produces palm-like leaves and bloom spikes of light purple, white, or blue flowers in the middle of summer. Other common names for this plant include the chasteberry and Texas lilac. It is common practice to shape vitex either as a dense shrub or as a small tree when used...