SelecTree: Tree Detail

ROBINIA PSEUDOACACIA 'PYRAMIDALIS'
Robinia pseudoacacia 'Pyramidalis'

Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis' Robinia pseudoacacia 'Pyramidalis'

Photo Locations: Washington Park Arboretum - Seattle, WA

General Notes

A narrow, columnar tree.

Has fragrant Flower.

Has thorns.

Family: Fabaceae

Tree Characteristics

Erect and requires ample growing space.

Columnar Shape.

Has Deciduous foliage.

Height: 50 feet.

Width: 10 feet.

Growth Rate: 36 Inches per Year.

Longevity 50 to 150 years.

Leaves Pinnately Compound Odd with Elliptic to Ovate Leaflets, Medium to Dark Green, Gold, Deciduous.

Flowers Showy. Fragrant White. Flowers in Spring or Summer. Has perfect flowers (male and female parts in each flower).

Brown Pod, Very Large (Over 3.00 inches), fruiting in Fall Wildlife use it.

Bark Dark Brown or Red Brown, Fissured.

Shading Capacity Rated as Moderate in Leaf.

Shading Capacity Rated as Low out of Leaf.

Litter Issue is Dry Fruit.

Tree Site Conditions & Constraints

Sunset Zones 2 - 24.

USDA Hardiness Zones 5 - 9.

Exposure Full Sun to Partial Shade.

Moist to Dry Soil.

Drought tolerant.

Clay, Loam or Sand Texture.

Highly Acidic to Highly Alkaline Soil pH.

Salinity Tolerance is Moderate Inland.

Seaside Tolerance is Good in Mild Zone.

Pests & Disease Information

Susceptible to Aphids and Beetle Borers, Fusarium, Armillaria, Phytophthora, Root Rot and Verticillium.

Health, Safety & Environmental Concerns

Branch Strength Rated as Medium Weak to Medium

Root Damage Potential Rated as High.

Allergy and Poisonous Health Hazard.

Desirable Wildlife Plant.

Attracts Birds.

Wildlife use Fruit.

Cite this tree:
SelecTree. "Robinia pseudoacacia 'Pyramidalis' Tree Record." 1995-2018. Nov 15, 2018.
< https://selectree.calpoly.edu/tree-detail/robinia-pseudoacacia-pyramidalis >

This tree is not part of the SelecTree Nursery Connection. If you would like to see this tree listed, or know of a nursery that sells it, please contact us at ufei@calpoly.edu.