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Canadian Hemlock

Tsuga canadensis (SOO-guh ka-na-DEN-sis)

Family: Pinaceae Unknown Shrub (3-15 ft)

Emerald Fountain® is a small, slow-growing, needled evergreen shrub or tree in the pine family (Pinaceae). A cultivar of Canadian hemlock, it has a columnar form that reaches a height of 6 to 10 feet and width of 2 to 3 feet. The genus name, Tsuga , originated from the Japanese word that means "mother" and "tree." The epithet means “of Canada,” referring to the origin of the species. Emerald Fountain grows in partial to full shade but needs moist well-drained soils. Cooler areas are best as it doesn't tolerate drought or the heat and humidity of the Southeast. It can primarily be planted as an understory tree and needs protection from the afternoon sun in southern locations. Foliage may scorch and prolonged drought can be fatal to the tree. It requires little to no pruning and is resistant to deer and black walnut. Winter mulching is helpful for the plant’s survival. The flat needles have two white bands on the undersides, adding year round interest to the foliage. This tree can be used in a naturalized or recreational play area along a slope or bank in a woodland landscape. It’s great in a children’s garden and a rock, shade or winter garden. It can be used as a border or hedge for screening and privacy and as a specimen shade tree or used in a small grouping. Fire Risk: This plant has a high flammability rating and should not be planted within the defensible space of your home. Select plants with a low flammability rating for the sites nearest your home. Insects, Diseases, or Other Plant Problems: Potential insect problems include hemlock woolly adelgid, bagworms, sawfly and spider mites. VIDEO created by Elizabeth Meyer for "Trees, Shrubs and Conifers," a plant identification course developed in partnership with Longwood Gardens.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 54 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Often confused with Tsuga canadensis
Fills a similar niche Cedrus deodara 'Devinely Blue' Salvia rosmarinus x Hesperotropsis leylandii 'Reco'

Full plant profile

Growing Conditions
Plant type
Shrub; Tree
Life cycle
Woody
USDA zones
3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b
Light
Dappled Sunlight (Shade through upper canopy all day) | Deep shade (Less than 2 hours to no direct sunlight) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; Loam (Silt); Sand
Soil pH
Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
6-feet-12 feet
NC region
Mountains; Piedmont
Mature size
Height: 6 ft. 0 in. - 10 ft. 0 in. | Width: 2 ft. 0 in. - 3 ft. 0 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Columnar; Dense
Texture
Fine
Foliage
Needled Evergreen
Leaf color
Brown/Copper; Cream/Tan; Green
Leaf type
Needles
Leaf arrangement
Opposite
Leaf shape
Acicular
Leaf margin
Dentate
Leaf value
Showy
Leaf size
< 1 inch long, < 1 inch wide
Hairs present
No
Leaf detail
The leaves are small ½ inch glossy needles that have a white underside in 2 opposite rows Its needles are attached by slender stalks ending with woody pads. The margins minutely dentate, especially toward apex.
Flower detail
No flowers.
Fruit detail
No fruits, cones.
Bark color
Dark Brown; Dark Gray; Red/Burgundy
Bark detail
The thick and ridged bark on mature trees is red-brown to gray-brown.
Stem color
Brown/Copper; Gold/Yellow; Gray/Silver
Stem detail
Twigs yellow-brown, densely pubescent. Stems slender, gray-brown in color; buds are very small.
Wildlife & Ecology
Native status
Unknown
Attracts
Songbirds
Play value
Buffer; Easy to Grow; Screening
Landscape Use
Landscape location
Naturalized Area; Recreational Play Area; Slope/Bank; Woodland
Landscape theme
Children's Garden; Rock Garden; Shade Garden; Winter Garden
Design feature
Border; Hedge; Screen/Privacy; Shade Tree; Small groups; Specimen; Understory Tree
Garden tags
#year-round interest #black walnut toxicity tolerant #evergreen shrub #dense growth #needled evergreen #drought intolerant #needles #deer resistant #evergreen #conifer #showy leaves #columnar #compact #low growing #low maintenance #acidic soils tolerant #shade garden #frost tolerant #hedge
Problems & Resistance
Insect problems
Hemlock Woolly Adelgid; Pests of Conifers
Resistant to
Black Walnut; Deer; Heavy Shade
Particularly resistant to
This tree is moderately resistant to damage from deer.
Fire risk
high flammability

Planted at Hunnicutt

Nobody’s planted this one yet.