How to Grow Hetz Wintergreen Arborvitae

Hetz Wintergreen Arborvitae

Thuja occidentalis 'Hetz Wintergreen'

shrub

Hetz Wintergreen is a narrow, pyramidal evergreen shrub known for its vibrant dark green foliage that retains excellent color throughout winter, unlike many arborvitae varieties that bronze in cold weather. This compact cultivar grows slowly and is ideal for hedging, screening, and specimen plantings in residential landscapes. It offers year-round visual interest with minimal maintenance requirements.

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Example Hetz Wintergreen Arborvitae timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Hetz Wintergreen Arborvitae

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Hetz Wintergreen Arborvitae

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Hetz Wintergreen Arborvitae dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6+ hours daily; tolerates partial shade but foliage color and density are best in full sun
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Water: Moderate water needs; keep soil consistently moist but not waterlogged, especially during establishment year. Water deeply 1-2 times weekly in growing season; reduce in winter. Drought-tolerant once established.
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Spacing: 36-48 inches
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Days to maturity: Mature form reached in 10-15 years; reaches 15-20 feet tall and 3-4 feet wide at maturity
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Planting depth: Plant at same depth as root ball; do not bury trunk

Soil

Type: Well-draining loamy to sandy loam soil
pH: 6.0-7.5
Amendments:
Compost at planting Peat moss for moisture retention in sandy soils Mulch layer (2-3 inches) to maintain soil moisture and temperature

Growing Zones

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Thrives in zones 3-8, with best performance in zones 4-7

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

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Growth Stages

1

Establishment (Year 1)

12 months

Young transplant with compact pyramidal form, dark green foliage; active root development occurring below ground

Water consistently to keep soil moist but not soggy. Avoid fertilizer first year to prevent soft growth. Mulch around base. Stake if necessary to maintain upright form.

2

Vegetative Growth (Years 2-4)

3 years

Steady upright growth with densening foliage; maintains narrow pyramidal shape naturally without excessive pruning

Water during dry spells. Light pruning only to maintain shape if desired. Apply balanced slow-release fertilizer in early spring. Monitor for pest issues.

3

Maturing Growth (Years 5-10)

5-6 years

Filling in nicely with dense, deep green foliage; reaches functional size for screening; slow growth rate becomes more apparent

Reduce watering frequency; plant is drought-tolerant when established. Prune lightly in early spring if shaping hedges. Fertilize annually if desired for vigor.

4

Mature Form (Years 10+)

Indefinite; 20+ year lifespan

Reaches full height of 15-20 feet with narrow 3-4 foot width; dense pyramid shape with consistent dark green winter color

Minimal maintenance; occasional pruning to maintain shape. No fertilizer needed unless soil is poor. Water during severe drought. Remove dead or damaged branches.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Black walnut trees (juglone toxicity) Salt-spray zones without protection Areas with poor drainage or standing water

Common Pests

  • Hand-pick bags in winter; spray with spinosad or Bt in June when larvae are young; parasitic wasps provide natural control

  • Prune affected foliage; spray with horticultural oil in early spring before egg-laying; systemic insecticides if severe

  • Spray with strong water spray; use horticultural oil or neem oil if infestation develops; increase humidity around plant

  • Prune infested branches; apply horticultural oil in dormant season; systemic insecticides for severe infestations

  • Install 8-foot fencing; apply deer repellent sprays; plant in groups to make browsing less attractive

Uses

🏠

Screening and Privacy Hedges

Household

Hetz Wintergreen's narrow, dense pyramidal form and compact growth make it excellent for creating living screens and privacy barriers along property lines. Multiple plants spaced 3-4 feet apart form an effective windbreak and visual screen. [source]

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Winter Landscape Color

Household

Unlike many arborvitae cultivars that turn bronze or brown in winter, Hetz Wintergreen maintains its vibrant dark green foliage year-round, providing consistent visual interest and color to the winter landscape. [source]

🦋

Wildlife Shelter

Wildlife

The dense evergreen foliage provides year-round shelter, nesting sites, and food sources (seeds) for birds and small mammals, making it valuable for wildlife habitat and ecological gardens. [source]

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Specimen or Accent Planting

Household

The naturally attractive pyramidal form and consistent winter color make Hetz Wintergreen suitable as a focal point or accent plant in foundation plantings, entry gardens, and formal landscape designs. [source]

🏠

Wind and Pollution Tolerance

Household

Arborvitae species are relatively tolerant of urban air pollution and moderate wind exposure, making Hetz Wintergreen suitable for challenging landscape sites where other evergreens struggle. [source]

Harvest Tips

Not typically harvested. Prune dead or damaged branches as needed for aesthetic purposes. Perform light shaping in early spring or midsummer. Avoid heavy pruning which can create open gaps that don't refill quickly.

Fun Facts

  • 🌱 The name 'Arborvitae' comes from Latin meaning 'tree of life,' historically valued by Native Americans for medicinal and practical uses including the original source of vitamin C
  • 🌱 Hetz Wintergreen was selected as a cultivar specifically for its superior winter color retention compared to the species type, which often bronzes in cold weather
  • 🌱 Thuja occidentalis is native to northeastern North America and has been cultivated as an ornamental for over 400 years in European gardens

Gardening Terms

New to gardening? Learn about terms used in this guide:

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