How to Grow Dwarf Green Arborvitae
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Dwarf Green Arborvitae
Thuja occidentalis (dwarf cultivars)
shrubDwarf green arborvitae is a compact, slow-growing evergreen conifer prized for ornamental landscaping and screening. These cultivars typically reach 3-15 feet depending on variety, with soft, feathery foliage that remains vibrant green year-round. They are hardy, low-maintenance, and excellent for hedges, borders, and foundation plantings.
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Example Dwarf Green Arborvitae timeline · Pittsburgh, PA (Zone 6b)
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Plant Dwarf Green Arborvitae
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Dwarf Green Arborvitae
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Dwarf Green Arborvitae dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-8, with best performance in zones 3-7
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Get my Dwarf Green Arborvitae timeline →Growth Stages
Establishment
First 1-2 yearsYoung transplant with active root development. Foliage is softer and lighter green than mature plants.
Water consistently 2-3 times weekly. Avoid heavy pruning. Apply balanced fertilizer (10-10-10) in spring. Mulch around base.
Vegetative Growth
Years 2-5Plant develops stronger structure and denser branching. Foliage transitions to deeper green color.
Continue regular watering during dry spells. Light shaping pruning in late spring or early summer. Top-dress with compost annually.
Maturation
Years 5-10Plant reaches near-final size with dense, full canopy. Color deepens and becomes consistent year-round.
Reduce watering frequency. Prune only for shape or to remove dead branches. Fertilize annually in spring if desired.
Mature
10+ years onwardFully mature plant with maximum width and height for the cultivar. Foliage is dense and rich green.
Minimal care needed. Water during severe drought. Prune selectively to maintain form. Monitor for pests and disease.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick bags in fall/winter. Spray with Bacillus thuringiensis (Bt) or insecticidal soap in early summer when larvae are active.
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Spray with water to increase humidity. Apply insecticidal soap or horticultural oil in spring/summer. Avoid over-fertilizing.
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Prune infested branches. Apply horticultural oil in late fall or early spring before growth begins.
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Prune and destroy infested foliage. Apply insecticide in late May to early June when moths are laying eggs.
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Ensure excellent drainage. Avoid waterlogging. Remove and destroy severely affected plants. Improve air circulation.
Uses
Screening & Privacy Hedges
HouseholdDwarf green arborvitae is one of the most popular choices for creating evergreen screens and privacy hedges due to its dense foliage, narrow form, and year-round coverage. Multiple plants spaced appropriately create an attractive, living fence. [source]
Foundation & Landscape Plantings
HouseholdThe compact, columnar or rounded forms of dwarf cultivars make them ideal for framing doorways, corners, and foundation beds. They provide structure and winter interest to gardens. [source]
Wildlife Habitat & Food Source
WildlifeArborvitae provides shelter and nesting sites for songbirds, rabbits, and small mammals. The foliage and seeds are browsed by deer and wildlife, making it valuable for wildlife gardens. [source]
Aromatic Foliage & Crafts
CraftThe crushed foliage has a pleasant, distinctive aromatic scent used in traditional crafts, wreaths, and dried arrangements. Historical use includes folk remedies, though modern use is primarily ornamental. [source]
Traditional Herbal Uses
MedicinalHistorically, arborvitae foliage was used in traditional medicine preparations, though modern herbalists recommend caution due to potential toxicity. Contemporary use is minimal; consult healthcare providers before any medicinal application. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Arborvitae is not harvested for food. For ornamental purposes, prune selectively in late spring or early summer to maintain shape and density. Remove dead or diseased branches anytime. Avoid heavy pruning in fall, which can reduce hardiness.
Fun Facts
- 🌱 The name 'arborvitae' means 'tree of life' in Latin, given by early European colonists who believed it had medicinal properties.
- 🌱 Dwarf cultivars like 'Emerald Green' and 'Techny' were developed in nurseries through careful selection and propagation, creating more manageable sizes than the native 40-60 foot tall species.
- 🌱 Arborvitae foliage undergoes seasonal color changes, often darkening or developing purple tones in winter due to anthocyanin production—a natural antifreeze response in cold climates.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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