American Mountain Ash Tree

American Mountain Ash Tree

2-3ft
$54.95
$54.95
Skip to product information
American Mountain Ash Tree
  • American Mountain Ash Tree
  • A close-up view of a leafy green tree branch covered with clusters of bright red berries, photographed outdoors in natural light. Mountain Ash
  • Plant size guide showing different plant heights with corresponding measurements.
  • A close-up of a green leafy branch with clusters of small orange berries against a blurred green background. Mountain Ash
  • Close-up of autumn tree branches with bright yellow-orange leaves and clusters of red berries. Mountain Ash
  • American Mountain Ash Tree
  • A close-up view of a leafy green tree branch covered with clusters of bright red berries, photographed outdoors in natural light. Mountain Ash
  • Plant size guide showing different plant heights with corresponding measurements.
  • A close-up of a green leafy branch with clusters of small orange berries against a blurred green background. Mountain Ash
  • Close-up of autumn tree branches with bright yellow-orange leaves and clusters of red berries. Mountain Ash
American Mountain Ash Tree

American Mountain Ash Tree

$54.95
$54.95
Size

Sorbus americana

The American Mountain Ash is a striking, small deciduous understory tree or large shrub that brings exceptional multi-season interest and structural elegance to the landscape. Celebrated for its delicate, fern-like foliage and graceful form, this native beauty transitions effortlessly through the changing seasons.

In late spring, it produces dense, flat-topped clusters of small, bright white blossoms that contrast beautifully against its dark green compound leaves. By late summer, these flowers mature into spectacular, heavy clusters of vibrant orange-red berries that remain on the branches long after leaf-drop, serving as a vital food source for local wildlife. As autumn arrives, the finely-toothed leaflets turn a brilliant golden-yellow, orange, and purplish-red, adding a magnificent burst of color to the cool-weather landscape.

The Ecological Footprint

  • Wildlife Sanctuary: A premier ecological anchor, offering crucial nesting cover and high-value seasonal food resources for native birds and small mammals.

  • The Berry Buffet: Produces abundant, nutrient-rich clusters of pome fruits that sustain dozens of resident and migrating bird species throughout late autumn and winter.

  • Pollinator Magnet: Features open spring flower clusters that draw in heavy traffic from native bees, butterflies, and beneficial insects.

  • Natural Habitat Staple: Robustly thrives along cool forest margins, bog borders, and rocky mountain outcrops, making it uniquely adapted to northern ecosystems and high-elevation sites.

The Honest Harvest (What to Expect)

  • The Perks: Offers stunning four-season ornamental appeal, exquisite spring blooms, brilliant autumn foliage, persistent winter fruit, and a compact mature size well-suited for smaller yards or under utility lines.

  • The Caveats: Prefers cool northern climates and struggles in hot, humid southern summers. It can be sensitive to environmental stressors and requires well-drained soil, performing best away from heavy drought or stagnant waterlogged conditions.

Specifications

  • Botanical Name: Sorbus americana

  • Common Names: American Mountain Ash, Rowan Tree, Roundwood

  • Mature Height: 15-30 feet

  • Mature Width: 15-25 feet

  • Growth Rate: Slow to medium

  • Lifespan: 20-40 years

  • USDA Zones: 2-6 (best adapted to cool northern climates)

  • Chill Hours: *

  • Sun Preference: Full sun to partial shade

  • Soil Type: Moist, acidic, humus-rich, and well-drained soils

  • Soil pH: Acidic to neutral (adaptable, prefers well-drained conditions)

  • Water Needs: Moderate; prefers consistently moist, well-drained sites

  • Flower Color: White; late spring to early summer

  • Fruit Type: Small, showy orange-red pomes (berries); late summer through winter

  • Pollinators: *

  • Growth Habit: Small deciduous understory tree with an open, rounded, or slightly pyramidal crown

  • Spacing: 15-20 feet apart for individual specimens or loose groupings

  • Landscape Uses: Specimen tree, woodland naturalizing, wildlife gardens, accent planting

  • Maintenance Level: Low (requires minimal pruning once established)

Planting & Care Guide

  • Hydration: Saturate the root zone thoroughly at the time of planting, and maintain consistent soil moisture during the first two growing seasons to help the tree establish its root system.

  • Siting: Choose a location that receives full sun to partial shade with cool, well-drained, acidic soil. Avoid heavy, poorly drained clay or hot, sun-baked southern exposures.

  • Mulching: Apply a 3-inch layer of organic mulch around the root zone to insulate roots and retain moisture, keeping the mulch several inches away from the trunk to prevent moisture buildup.

  • Establishment: Water deeply during dry spells throughout its early years. Protect young bark and lower stems from browsing wildlife if necessary.

  • Pruning: Prune minimally in late winter or early spring just before new growth emerges, removing any dead, damaged, or crossing branches to maintain a clean structure.

  • Fertilization: Generally unnecessary in healthy soils. A light top-dressing of organic compost around the drip line in early spring can provide a gentle nutrient boost if growth appears slow.

You may also like