This Florida-Friendly Landscaping publication is part of a series originally written by Edward F. Gilman. Visit https://ffl.ifas.ufl.edu to learn more about creating and maintaining attractive landscapes that protect Florida’s water resources and environment.
Introduction
The crested Philippine violet is an upright herbaceous perennial with a height of 6 feet and spread of 4 feet (Figure 1). Leaf tissue is dark green, puckered around the veins, which appear recessed, and has a medium texture (Figure 2). The plant remains dense in the full sun, creating a nice barrier planting. White or lavender funnel-shaped flowers appear on the new growth of this plant in the late summer and early fall (Figures 3, 4, and 5). The showy flowers and evergreen leaves make this plant a nice addition to the landscape. In addition, Philippine violet is very low maintenance and drought tolerant. This plant is well suited for use as a hedge, foundation planting, or border in landscaping beds.
Credit: Keighly Graves, UF/IFAS
Credit: Keighly Graves, UF/IFAS
Credit: Keighly Graves, UF/IFAS
Credit: Shivlal via AdobeStock
Credit: polyyim via AdobeStock
General Information
Scientific name: Barleria cristata
Pronunciation: bar-LEER-ee-uh kriss-STAY-tuh
Common name(s): crested Philippine violet, Philippine violet, bluebell barleria, barleria
Family: Acanthaceae
Plant type: perennial; herbaceous
USDA hardiness zones: 9A through 11B (Figures 6 and 7)
Credit: This map is based on the 2023 USDA Plant Hardiness Zone Map. Visit https://planthardiness.ars.usda.gov/ for specific zone information.
Credit: This map is based on the 2023 USDA Plant Hardiness Zone Map. Visit https://planthardiness.ars.usda.gov/ for specific zone information.
Planting month for zone 9: year-round
Planting month for zones 10 and 11: year-round
Origin: native to temperate Asia and tropical Asia
Invasive potential: not considered a problem species at this time
Uses: superior hedge; foundation; border
Availability: somewhat available, may have to go out of the region to find the plant
Description
Height: 4 to 6 feet
Spread: 3 to 4 feet
Plant habit: upright
Plant density: dense
Growth rate: fast
Texture: medium
Foliage
Leaf arrangement: alternate
Leaf type: simple
Leaf margin: entire
Leaf shape: ovate
Leaf venation: bowed; pinnate
Leaf type and persistence: evergreen
Leaf blade length: 2 to 4 inches
Leaf color: green
Fall color: no fall color change
Fall characteristic: not showy
Flower
Flower color: pink; purple; white
Flower characteristic: fall flowering; winter flowering
Fruit
Fruit shape: capsule
Fruit length: less than 1 inch
Fruit cover: dry or hard
Fruit color: brown
Fruit characteristic: inconspicuous and not showy
Trunk and Branches
Trunk/bark/branches: not particularly showy; typically multi-trunked or clumping stems
Current year stem/twig color: green
Current year stem/twig thickness: thin
Culture
Light requirement: plant grows in full sun; plant grows in partial shade
Soil tolerances: acidic; slightly alkaline; sand; loam; clay
Drought tolerance: moderate to high
Soil salt tolerances: poor
Plant spacing: 36 to 60 inches
Other
Roots: not applicable
Winter interest: evergreen foliage adds winter interest
Pest resistance: long-term health usually not affected by pests
Use and Management
Philippine violet thrives in full sun to partial shade locations. This drought tolerant plant adapts to a variety of soil conditions; however, it prefers well-drained soil. In the northern hardiness zones, this plant will die back in the winter. Pruning this plant to the ground each spring encourages a fuller growth habit. When pruning, remove the dead foliage and stems, and new growth will emerge in the spring from the base of the stems. Wear gloves when cleaning up this plant in the spring; the leaves become coarse after freezing and could irritate exposed skin.
Philippine violet is a good background or specimen plant or may be used as a mass planting. It can also be used for a hedge or border planting to create a wall effect in a garden or landscape. It will stay small enough for use along a house foundation, provided it is not placed in front of a low window. Care should be used when locating this plant in the landscape, as it readily reseeds and may move outside the intended area of cultivation.
Propagation is by seeds or cuttings.
Design Considerations
The crested Philippine violet is a versatile herbaceous perennial with dark green, medium-textured foliage and white or lavender flowers that make it suitable for various landscape designs, including as a hedge, foundation planting, or border. Its uniform growth habit lends itself well to formal gardens where it can create structured patterns, while its natural appearance allows it to blend seamlessly into informal perennial and cottage gardens. This plant also thrives in tropical-themed gardens alongside ferns and palms, adding a sense of exotic flair. When integrating it into any design, consider pairing it with plants that have contrasting foliage colors and staggered bloom times to create continuous visual interest.
Pests and Diseases
No pests or diseases of major concern.