Botanical profile

Gleditsia triacanthos var. inermis 'Imperial'

Latin name
Gleditsia triacanthos var. inermis 'Imperial'
Common name
Honeylocust ‘Imperial’
Type
Leafy
Family
Fabaceae

Gleditsia triacanthos var. inermis ‘Imperial’ is an elegant and highly prized ornamental tree for modern landscaping, renowned for its regular pyramidal habit which offers a refined vertical structure in avenues, parks, or large gardens. Its light and delicate pale green foliage provides an airy and luminous texture from spring to autumn, allowing light to filter through while creating a light and pleasant shade under its slender silhouette. In autumn, the leaflets take on subtle yellow hues that enrich the landscape. Very hardy and tolerant, this tree prefers a sunny to semi-shady exposure and adapts to a variety of well-drained soils, including less rich ones. Thornless like all inermis varieties, Gleditsia ‘Imperial’ combines aesthetics, ease of maintenance, and robustness, making it an ideal choice as a street tree, isolated specimen, or focal point in contemporary or residential green spaces.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 3
Exposure
Sun
Watering
Moderate to drought-tolerant
Fertilization
Balanced spring salad
Soil type
Well-drained, tolerant
Minimum temperature
-35°C
Plant appearance

Blooming, foliage and shape

Blooming period
Late spring to early summer
Flower color
Cream / pale yellow
Fruiting
Dark brown decorative pods
Foliage color
Pale green ? yellow (autumn)
Foliage type
Obsolete
Shape
Rounded
Garden structure

Size and growth

Height
30-40 ft (9-12 m)
Width
25-35 ft (7.5-10.5 m)
Growth rate
Fast
Not recommended for pets
Not recommended for pets

Pets

Butterflies
Plants that attract butterflies

Butterflies

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.