Vitex agnus-castus var. latifolia (Chaste Tree): Blue Flower Spikes and Cold Hardiness

Overview

Chaste tree (Vitex agnus-castus var. latifolia) is a southern favorite gaining national popularity. Fine, lacy, glossy green leaves and bright blue flower panicles from early summer through fall. Can be grown as a large multistemmed shrub or cut back annually for compact form. Var. latifolia extends hardiness to zone 6 (even southern zone 5). Deer-resistant.

Growing Conditions

Full sun in well-drained soil. Medium moisture. Heat and humidity tolerant.

Care and Maintenance

Prune in late winter (blooms on new wood) or cut back annually for size control. Propagate from cuttings or seed. Low maintenance.

Common Problems

Leaf spot, root rot, scale insects. Generally trouble-free in well-drained soil.

Landscape Uses

• Specimen plant/focal point
• Backyard feature
• Shrub borders
• Cut back as dieback shrub in cold zones
• Pollinator gardens (butterflies)

Key Features

• Blue flower panicles all summer
• Fine, lacy, aromatic foliage
• Zone 6 hardy (var. latifolia)
• Deer resistant
• Can be cut back annually
• Attracts butterflies