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Bar Harbor Juniper

Juniperus horizontalis (jew-NIP-er-us hor-ih-zon-TAL-iss BAR HAR-bor)

Family: Cupressaceae Unknown Herbaceous (1-3 ft)

'Bar Harbor’ juniper is a low-growing, needled evergreen shrub or groundcover in the Cupressaceae (cypress) family. The parent plant is native to the northern part of North America. Its species name horizentalis refers to the tendency of its long, trailing branches to spread much farther horizontally than it grows vertically. The parent plant is found growing in rocky or sandy soils from rocky outcrops to streams, making this shrub fairly adaptable to various soil types and pH as long as the soil is well drained. ‘Bar Harbor’ is drought and deer tolerant, fairly salt tolerant, and grows well in coastal conditions. It prefers full sun and tolerates hot weather, moderately poor soils, and many air pollutants found in urban areas.This juniper grows to about 1 foot in height and spreads to a width of 6 to 8 feet. Plant 6 to 8 feet apart. It can be severely pruned without damaging the plant. This cultivar, which is typically male, has gray-green or blue-green foliage in the summer that becomes a reddish-purple in the winter. ‘Bar Harbor’ is a versatile plant that is not too dense. Use this cultivar as a ground cover on slopes, where it can help control soil erosion, or in rock gardens or retaining walls. Its horizontal form makes it ideal to plant along a walkway or near a patio. Insects, Diseases, and Other Plant Problems: Like most junipers, 'Bar Harbor' is subject to infestation by aphids, bagworms, caterpillars, false spider mites, spruce spider mites, juniper tip mites, juniper and other scales, and juniper webworm. It is also susceptible to blights and some fungal diseases. A wet location may cause root rot. The Clemson Cooperative Extension Home and Garden Information Center has a factsheet on common juniper diseases and insect pests. VIDEO Created by Elizabeth Meyer for " Trees, Shrubs and Conifers " a plant identification course offered in partnership with Longwood Gardens. More information on Juniperus horizontalis .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 39 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft) Optimal soil pH Acid (<6.0); Alkaline (>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.

Fills a similar niche Juniperus horizontalis 'Limeglow' Juniperus horizontalis 'Plumosa' Juniperus horizontalis 'Wiltonii'
Native alternatives Juniperus communis var. depressa

Full plant profile

Growing Conditions
Plant type
Ground Cover; Shrub
Life cycle
Woody
USDA zones
4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day)
Soil texture
Clay; Loam (Silt); Sand; Shallow Rocky
Soil pH
Acid (<6.0); Alkaline (>8.0)
Soil drainage
Good Drainage
Available space
6-feet-12 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 0 ft. 8 in. - 1 ft. 0 in. | Width: 6 ft. 0 in. - 8 ft. 0 in.
Growth rate
Slow
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Horizontal; Spreading
Texture
Fine
Foliage
Needled Evergreen
Leaf color
Blue; Gray/Silver; Green; White
Leaf type
Needles
Leaf value
Showy
Hairs present
No
Leaf detail
Very small, tightly appressed, awl-shaped scale-like leaves. Deep grass green color. Coated with white glaucous bloom giving a gray-green or blue-greenappearance. Mauve winter color.
Flower detail
No flowers.
Fruit color
Blue
Fruit detail
No fruits. Dark blue cones are formed. They are referred to as juniper berries. They are not common on cultivated plants.
Stem detail
Thin, flexible stems
Wildlife & Ecology
Native status
Unknown
Landscape Use
Landscape location
Coastal; Patio; Slope/Bank; Walkways
Landscape theme
Drought Tolerant Garden; Rock Garden
Design feature
Border; Mass Planting
Garden tags
#evergreen #deer resistant #rocky soils tolerant #air pollution tolerant #dry soils tolerant #salt spray tolerant #erosion control #winter interest #drought tolerant #garden walls #wet soils intolerant #blue green needles #slopes #patio #coastal plant #poor soil tolerant #walkway
Problems & Resistance
Insect problems
Juniper Webworm; Pests of Conifers
Resistant to
Deer; Drought; Dry Soil; Heat; Pollution; Poor Soil; Urban Conditions

Planted at Hunnicutt

Nobody’s planted this one yet.