Arabian Lilac – Desert Horizon Nursery

Arabian Lilac

Vitex trifolia 'Purpurea'
Categories:
Shrubs  ·  
Shrubs
Light
Full sun
Water
Low to moderate water once established; water deeply, allowing soil to dry between irrigations. Provide supplemental water during prolonged summer heat.
Size
6-10 ft tall × 6-10 ft wide
Habit
Rounded shrub
Toxicity
Not Established
Description
A heat-tolerant shrub or small tree with aromatic, gray-green leaves, rich purple leaf undersides, and clusters of lavender-blue flowers.
Bloom Time
Spring through fall
Deciduous / Evergreen
Semi-evergreen
Special Features
Attracts Bees / Pollinators, Attracts Butterflies, Drought Tolerant, Fragrant
Growth Rate
Fast
Growth Habit
Rounded shrub
Mature Size
6-10 ft tall × 6-10 ft wide
Flower Color
Lavender-blue
Foliage Color
Purple-tinged gray-green
Landscape Use
Border / Bed, Container / Patio, Hedge / Screen, Specimen / Accent
Garden Style
Hedge / Formal, Pollinator / Wildlife
Soil
Alkaline Tolerant, Sandy / Rocky, Well-Drained
Companion Plants
Autumn sage, Desert spoon, Red yucca, Texas sage, Trailing lantana
Not Established
Not established — verify
Care Instructions

Light: Full sun to light shade; light afternoon shade can help in Phoenix locations with intense reflected heat.

Water: Low to moderate water once established; water deeply, allowing soil to dry between irrigations. Provide supplemental water during prolonged summer heat.

Soil: Well-drained soil; tolerates sandy, loamy, and alkaline soils. Avoid persistently wet soil.

Mature size: Typically 10–15 feet tall and 8–12 feet wide; can be maintained smaller with pruning.

Bloom: Intermittently from late spring through fall, with flowering influenced by warmth and available moisture.

Evergreen / deciduous: Evergreen in frost-free conditions; may become semi-evergreen or lose leaves during Phoenix cold snaps.

Growth rate: Fast with adequate warmth and irrigation.