American Mountain Ash

Sorbus americana Marshall

Rose family

Plant Type

Tree, Shrub

Life Cycle

Perennial

Mature Height

40.0 feet

Spread

6.0 feet

Flower Color

White

Bloom Time

Early Summer

Growing Conditions

Light

Shade Tolerance Intermediate

Water

Water Use Medium

Drought Tolerance Low

Flood Tolerance Low

Soil

Soil Types Clay, Loam, Sand

CaCO3 Tolerance Low

Fertility Need Medium

Stress Tolerance

Fire Tolerance Low

Salt Tolerance None

Climate

pH Range 5.3 – 6.8

Frost-Free Days 90 days

Precipitation 24 – 60 in

Ecosystem & Wildlife

Pollinators Native Bees; Bombus; Honey Bees; Beetles, Wasps, Flies; Butterflies; Larval Host (Butterfly); Larval Host (Moth)

Larval Host Acrobasis tricolorella, Euproctis chrysorrhoea, Euzophera semifuneralis, Hyalophora cecropia, Lomographa vestaliata, Lymantria dispar, Malacosoma americana, Orgyia antiqua, Papilio glaucus canadensis, Phyllonorycter crataegella, Podosesia syringae, Synanthedon pyri, Venusia cambrica, Venusia comptaria

Fall Color Yes

Evergreen No

Native Range

USA: Connecticut, Georgia, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode I., South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin
CAN: New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward I., Québec

Regional Native Status: L48 (N), CAN (N), SPM (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.