American Witchhazel

Hamamelis virginiana

Native to:
Canada, Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Hamamelidaceae
Genus:
Hamamelis
Species:
Hamamelis virginiana
USDA Symbol:
HAVI4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
600 cm
Light Requirements:
Part Shade,Shade
Drought Tolerance:
Medium
Bloom Months:
oct,nov,dec
Bloom Colors:
yellow
Landscaping Shrub:
Yes

Wildlife Benefits

Caterpillars:
★★★★☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

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

Host Plant for Caterpillars

Acronicta brumosa, Acronicta impleta, Angus's datana (Datana angusii), Banded Tussock Moth (Halysidota tessellaris), Caloptilia superbifrontella, Cecropia moth (Hyalophora cecropia), contracted datana (Datana contracta), Definite Tussock Moth (Orgyia definita), Drexel's datana moth (Datana drexelii), Eastern Tent Caterpillar (Malacosoma americana), Fall webworm (Hyphantria cunea), figure-seven moth (Drasteria grandirena), Forest Tent Caterpillar (Malacosoma disstria), Gypsy moth (Lymantria dispar), Heterocampa biundata, Heterocampa subrotata, Hickory Tussock Moth (Lophocampa caryae), impressed dagger moth (Acronicta impressa), Major datana (Datana major), Maple leaf blotch miner (Cameraria aceriella), Morning-glory prominent moth (Schizura ipomoeae), Mournful Thorn (Lambdina fiscellaria), oak leafroller (Archips semiferanus), oak leafroller moth (Argyrotaenia quercifoliana), Olethreutes appendiceum, Olethreutes footiana, Olethreutes merrickanum, Polyphemus moth (Antheraea polyphemus), Pyreferra citrombra, Pyreferra hesperidago, Red-bordered Emerald (Nemoria bistriaria), Saddled Prominent (Heterocampa guttivitta), three-spotted nola (Nola triquetrana), White-marked Tussock Moth (Orgyia leucostigma), witch hazel dagger moth (Acronicta hamamelis), witch-hazel leafminer (Cameraria hamameliella), woodland leafroller (Pandemis lamprosana), Yellownecked caterpillar (Datana ministra)

Reported Fauna Sightings

Moths:Caloptilia superbifrontella, Drexel's datana moth (Datana drexelii), witch hazel dagger moth (Acronicta hamamelis), witch-hazel leafminer (Cameraria hamameliella)

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fragrant:
Yes
Fall Color:
yellow
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from the root crown following fire. Moderately fire tolerant in its understory habitat.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
consistently moist
Notes:
Prefers woodland settings with organic matter

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 150–180 days
Germination Time:
30–730 days
Notes:
Seeds exhibit double dormancy requiring warm stratification followed by cold stratification. Germination is often delayed until the second spring after planting.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are cold stratified for 120 to 180 days. Seeds have both seed coat and embryo dormancy, alternating periods of warm and cold stratification may be needed for optimal germination. Seeds are sown outdoors in woody nursery beds soon after collection and cleaning to allow natural stratification to occur.

Establishment: Fruits were collected in the three parks in autumn before they split open, from September 8 to October 26. H. virginiana is found within temperate deciduous forests of North America and moist woods; Quebec and Nova Scotia to northern Michigan and Minnesota, south to Florida and Texas.

Source: npn.rngr.net

ORGHPS Germination Guide: Repeated cycles of 20C then 4C, 3 months each. Very prolonged.

Source: Ontario Rock Garden & Hardy Plant Society