Kalmia latifolia Ostbo Red

Ostbo Red Mountain-Laural

Kalmia latifolia ‘Ostbo Red’ — an evergreen shrub with a dense, rounded form, prized for its rich deep red flower buds that open to rosy pink blooms in late spring. The glossy dark green foliage provides year-round structure, while the intense bud color creates a bold pre-bloom display and strong contrast in woodland and shade gardens.

Type: Evergreen shrub

Mature Size: Width: 6–8 ft | Height: 6–8 ft
USDA Zones: 5a–8b
Form: Dense, rounded
Light: Partial shade to filtered sun
Soil / Water: Acidic, well-drained soil; evenly moist conditions preferred
Wildlife: Bees

Features & Landscape Uses:


Deep red buds provide striking early color 🌿
Evergreen foliage offers year-round interest
Excellent for woodland gardens and specimen planting
Strong visual impact before and during bloom

Care:
Plant in acidic, organic-rich soil with good drainage. Maintain consistent moisture and avoid drought stress. Prune lightly after flowering if needed, and protect from harsh afternoon sun and winter wind.

Plant type

Flowering evergreen shrub

Height

6-8'

Width

6-8'

Hardiness zones

5–8

Sunlight

Filtered Sun, Partial Shade

Growth rate

Slow

Flower color

Pink

Leaf color

Dark Green

Fall color

Dark Green

Attracts

Bees, Butterflies

Soil

Acidic, Moist well-drained

Landscape use

Accent Plant, Foundation Plant, Mass Planting

Shape

Dense, Rounded

Fragrant

Yes

Deer resistant

Yes

Drought tolerant

No