Purple Robe Locust #15

SKU: 18169 Category:

Botanical Name: Robinia Pseudoacacia 'Purple Robe'

Cultivar: Purple Robe

Other Names: Common Locust

A round-headed shade tree with highly fragrant and very attractive chains of deep pink flowers in spring, extremely adaptable, performs well in poor soils, more compact than the species, ideal as an accent tree for home landscapes

Plant Categories: Tree, Ornamental Tree, Shade Tree, Deciduous Tree

Water Requirements
Dry, Average, Moist

Sunlight Requirements
Full Sun, Partial Shade

Plant Height
40 Feet

Plant Width/Spread
30 Feet


Deer Resistant

Appropriate For Xeriscape Plantings

Native Plant

Flowering Plant

Out of stock


Growth & Care

USDA Plant Hardiness Zone4a
Growth RateFast
Recommended Pruning MethodLate Winter Pruning


Foliage TypeDeciduous
Fall ColorYellow
Plant FormRound


Flower PeriodSpring
Flower ColorPink
Flower FragranceHigh

Additional Categories

Additional CategoryBlack Locust
Landscape ApplicationAccent, Shade


Planting & Growing

Purple Robe Locust will grow to be about 40 feet tall at maturity, with a spread of 30 feet. It has a low canopy with a typical clearance of 5 feet from the ground, and should not be planted underneath power lines. It grows at a fast rate, and under ideal conditions can be expected to live for 60 years or more.

This tree does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for xeriscaping or the moisture-conserving landscape. It is not particular as to soil type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species.

Landscape Attributes

Purple Robe Locust is a deciduous tree with a more or less rounded form. Its relatively fine texture sets it apart from other landscape plants with less refined foliage.

This is a high maintenance tree that will require regular care and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration:

Suckering, Insects, Spiny

Purple Robe Locust is recommended for the following landscape applications:

Accent, Shade

Ornamental Features

Purple Robe Locust has chains of fragrant rose pea-like flowers with yellow eyes hanging below the branches in late spring. It has bluish-green deciduous foliage which emerges burgundy in spring. The oval pinnately compound leaves turn yellow in fall.