Bougainvillea 'Thai Delight': A Tropical Treasure - Bonte Farm

Bougainvillea 'Barbara Karst'

1-gal
$55.00
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Bougainvillea 'Thai Delight': A Tropical Treasure - Bonte Farm
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Bougainvillea 'Barbara Karst'

$55.00
Size1-gal

🔥 Bougainvillea ‘Barbara Karst’
Iconic Vivid Red Bougainvillea with Exceptional Vigor

Bougainvillea ‘Barbara Karst’ is one of the most celebrated bougainvillea varieties, known for its intense, fire‑red bracts and unmatched blooming power. Its bold coloration and vigorous growth make it a standout choice for dramatic landscape displays, instantly transforming warm‑climate gardens with tropical vibrancy.

Highly adaptable to Mediterranean, desert, and water‑wise landscapes, ‘Barbara Karst’ thrives in full sun and lean, well‑drained soil. Its fast growth, dense branching, and heavy bloom cycles make it ideal for trellises, fences, pergolas, large containers, and high‑impact architectural accents.


Botanical Characteristics of Bougainvillea ‘Barbara Karst’

Characteristic Detail
Common Name Barbara Karst Bougainvillea
Plant Type Evergreen vine or sprawling shrub
Foliage Bright green leaves with a firm, tropical texture
Bracts / Flowers Brilliant red bracts with small white true flowers
Blooming Season Spring through fall; nearly year‑round in frost‑free climates
Special Features Extremely vigorous growth, heavy blooming, iconic red coloration

Mature Size and Form

Height: 15–20 ft (trained)
Spread: 10–15 ft

Bougainvillea ‘Barbara Karst’ forms a dense, arching vine or shrub with strong structural branching. It can be trained vertically for dramatic height or allowed to cascade over walls, fences, and large planters for a lush, tropical effect.


USDA Hardiness Zones

Zones 9–11

Thrives in warm, frost‑free climates with full sun and excellent drainage. In cooler regions, it may be grown in containers and overwintered indoors.


Cultivation and Care for Bougainvillea ‘Barbara Karst’

Aspect Care Instructions
Sunlight Full sun (6–8+ hours) required for maximum blooming
Soil Well‑drained, slightly acidic soil; thrives in lean, sandy mixes
Water Low once established; allow soil to dry between waterings
Fertilizer Light feeding during warm months; avoid high‑nitrogen formulas
Pruning Prune after bloom cycles to shape and encourage new flowering wood

Landscape Use and Benefits of Bougainvillea ‘Barbara Karst’

• Iconic red bracts for bold, tropical color
• Ideal for trellises, fences, arbors, pergolas, and large containers
• Excellent for Mediterranean, desert, and water‑wise landscapes
• Extremely vigorous growth and long blooming season
• A classic choice for ornamental vine collections


Wildlife Attraction

The small true flowers attract bees and butterflies, while the dense branching offers shelter for small birds.


Pest and Disease Considerations

Bougainvillea ‘Barbara Karst’ is generally hardy and trouble‑free when grown in proper conditions. Potential considerations include:

• Root rot in poorly drained soils
• Leaf drop from overwatering or sudden temperature changes
• Occasional aphids, caterpillars, or bougainvillea looper

Full sun, excellent drainage, and conservative watering ensure long‑term vigor and abundant blooming.


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