How to Grow Weeping Alaskan Cypress

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Weeping Alaskan Cypress

Cupressus nootkatensis (syn. Xanthocyparis nootkatensis, Chamaecyparis nootkatensis)

tree

A graceful, narrowly conical evergreen tree native to the Pacific Northwest, characterized by delicate, drooping foliage and elegant, feathery branches. It features soft, fern-like foliage with a blue-green to gray-green color and aromatic, lemon-scented foliage when brushed. This slow-growing tree is prized as an ornamental specimen and can reach 40-60 feet tall in its native habitat, though cultivated varieties are often more compact.

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Example Weeping Alaskan Cypress timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Weeping Alaskan Cypress

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Weeping Alaskan Cypress

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Weeping Alaskan Cypress dates for your own zip code.

Growing Conditions

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Sun: Full sun to partial shade; prefers at least 4-6 hours of direct sunlight daily for best form and color
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Water: Regular, consistent moisture is essential; keep soil evenly moist but not waterlogged. Water deeply during establishment (first 2-3 years) and during drought. Sensitive to dry conditions, especially in hot climates; mulch to help retain soil moisture.
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Spacing: 60-120 inches
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Days to maturity: Not applicable (woody perennial; reaches mature size in 15-30+ years)
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Planting depth: Plant at same depth as root ball; top of root ball should be level with soil surface

Soil

Type: Well-draining loamy soil with consistent moisture; tolerates clay and rocky soils
pH: 5.5-7.0
Amendments:
Compost Peat moss Mulch to retain moisture Perlite for drainage in heavy clay

Growing Zones

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Thrives in zones 4b-8a; performs best in cool, moist climates

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

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Growth Stages

1

Nursery/Young Transplant

0-1 year (establishment)

Small tree with established root system from nursery container, typically 1-3 feet tall with developing branching structure

Plant in spring or early fall. Water thoroughly after planting. Mulch around base, keeping mulch 6 inches away from trunk. Protect from harsh winds.

2

Establishment & Early Growth

1-3 years

Tree becoming established with increased branching and foliage density; reaching 2-6 feet tall over several years

Maintain consistent moisture. Avoid heavy pruning. Apply balanced slow-release fertilizer in spring. Monitor for spider mites and scale insects in dry conditions.

3

Vegetative Development

3-10 years

Rapid height increase with fuller, more densely foliated branches; characteristic weeping form becoming more pronounced

Continue consistent watering. Prune only to remove dead or diseased branches or to shape. The naturally elegant form requires minimal pruning.

4

Mature Tree

10+ years (can live 200+ years)

Full-sized specimen tree (15-40+ feet depending on variety) with distinctive drooping branch structure and soft, feathery appearance

Water during extended drought periods. Monitor for disease and pests. Minimal pruning needed. Remove any diseased or damaged branches promptly.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Dry, sandy soils nearby Extreme heat-producing hardscapes Competitive shallow-rooted trees Black walnut (Juglans nigra)

Common Pests

  • Spray foliage with water to dislodge; use miticide if infestation is severe. Maintain humidity and avoid drought stress. Insecticidal soap may help.

  • Inspect regularly, especially on lower branches. Remove by hand or spray with horticultural oil in early spring before new growth. Systemic insecticides in severe cases.

  • Monitor for defoliation. Prune affected branches. Apply insecticide if population becomes problematic.

  • Similar treatment to scale; horticultural oil or targeted insecticide in early season. Remove heavily infested branches.

Uses

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Specimen Tree & Landscape Focal Point

Ornamental

The weeping alaskan cypress is a highly prized ornamental specimen tree with graceful, cascading branches and soft, feathery foliage that creates a dramatic focal point in gardens and landscapes. Its elegant form and year-round interest make it ideal for formal gardens, Japanese-style landscapes, and parks. [source]

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Aromatic Cut Foliage & Floral Arrangements

Household

The foliage is pleasantly lemon-scented when brushed or crushed and can be cut for use in fresh floral arrangements, wreaths, and decorative displays. The soft, feathery fronds add elegant texture to indoor arrangements. [source]

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Wildlife Habitat & Shelter

Wildlife

The dense foliage and branching structure provide excellent shelter and nesting habitat for birds and small wildlife. The tree is an important component of Pacific Northwest forest ecosystems. [source]

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Traditional Medicine & Essential Oil

Medicinal

Historically, indigenous peoples used weeping alaskan cypress foliage for medicinal purposes, and essential oil from the foliage has been traditionally used in aromatherapy. Contains volatile compounds with potential antispasmodic properties. [source]

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Bonsai & Container Gardening

Craft

Smaller cultivars and well-shaped specimens are popular subjects for bonsai cultivation and long-term container growing, where their graceful form and slow growth rate are advantageous. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Not harvested for food. Cones (female) can be collected for ornamental use or seed in fall when mature and brown; seeds are tiny and difficult to extract. Branches can be cut for decorative use in arrangements.

Fun Facts

  • 🌱 Weeping Alaskan Cypress was nearly extinct in the wild in the 1980s-1990s due to a fungal disease (Phytophthora lateralis, sudden oak death pathogen), but it has made a remarkable recovery thanks to conservation efforts and selection for disease-resistant cultivars.
  • 🌱 The scientific name has been revised multiple times; it was originally classified as Chamaecyparis nootkatensis, then Cupressus nootkatensis, and is now sometimes called Xanthocyparis nootkatensis. Its common name references Alaska, though it's native to coastal regions from Alaska to northern California.
  • 🌱 The foliage releases a distinctive lemon or grapefruit scent when brushed, and the resinous wood was traditionally used by Pacific Northwest indigenous peoples for ceremonial purposes, canoe building, and medicinal applications.

Gardening Terms

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