The Site Gardener

Plant Library

Explore 4,545 plants, with photos and growing details.

Back to Tools

← Back to plant results

Halesia tetraptera

Carolina Silverbell

Halesia tetraptera, commonly known as Mountain Silverbell, is a graceful deciduous tree valued for its elegant form and abundant spring flowers. Oval green leaves emerge in spring, followed by profuse, bell-shaped white flowers in mid-spring that hang beneath the branches, creating a soft, cascading display, and foliage turns yellow in fall. Its refined habit and woodland character make it an excellent understory or specimen tree.

Type: Deciduous tree

Mature Size:
Width: 20–30 ft
Height: 30–40 ft
(10-year size: approx. 12–18 ft tall × 8–12 ft wide)

USDA Zones: 4a–8b
Form: Upright to rounded, often multi-stemmed
Light: Full sun to partial shade (best flowering with some sun)
Soil: Moist, well-drained, slightly acidic soils; prefers rich organic matter
Water: Moderate; prefers consistent moisture

Wildlife: Attracts bees (flowers)


Features & Landscape Uses


Abundant white bell-shaped flowers in spring



Graceful, woodland-style form



Excellent specimen or understory tree



Suitable for naturalized or woodland plantings




Care
Plant in moist, well-drained, slightly acidic soil rich in organic matter. Performs best with protection from hot afternoon sun. Mulch to maintain moisture and cool roots. Prune lightly after flowering if needed. Generally low-maintenance and pest-resistant.

Plant type
Deciduous Tree, Flowering Ornamental Tree
Height
30-40'
Width
20-30'
Hardiness zones
5–8
Sunlight
Full Sun, Partial Shade
Growth rate
Moderate
Bloom time
Late Spring, Spring
Flower color
White
Leaf color
Dark Green
Fall color
Yellow
Attracts
Butterflies
Soil
Acidic, Loamy, Well Drained
Landscape use
Accent Plant, Specimen
Shape
Rounded, Upright
Bark
Fissured
Fruit
Yes
Drought tolerant
No
10-year height
8-12'
10-year width
12-18'