Carolina Silverbell

Halesia carolina

Also known as: Mountain Silverbell

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Styracaceae
Genus:
Halesia
Species:
Halesia carolina
USDA Symbol:
HACA3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
1200 cm
Light Requirements:
Shade
Drought Tolerance:
Low
Bloom Months:
apr,may
Bloom Colors:
white

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★☆☆☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Cecropia moth (Hyalophora cecropia), Promethea silkmoth (Callosamia promethea)

Reported Fauna Sightings

Butterflies:Eastern Tiger Swallowtail (Papilio glaucus)

Garden & Ecology Notes

Wildlife Value:
birds, bees, squirrels
Deer Resistant:
Yes
Fall Color:
yellow

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 6.5 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
consistently moist
Notes:
prefers fertile, organic-rich soils

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 150–180 days
Germination Time:
30–365 days
Notes:
Seeds exhibit double dormancy requiring warm stratification followed by cold stratification. Germination can be erratic and may take over a year.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are cold stratified for 60 days

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20°C for 3 months, then place @ 4°C for 3 months. Requires scarification. Nick or rub between sheets of sandpaper. Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard water and any seeds that remain floating. * soak in hot water for 24 hours to scarify

Source: Ontario Rock Garden & Hardy Plant Society