Botanical profile

Gleditsia triacanthos var. inermis 'Skyline'

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

Gleditsia triacanthos var. inermis ‘Skyline’ is an elegant and structuring ornamental tree particularly valued for its slender and open silhouette, which creates a refined verticality in flowerbeds, avenues, or large contemporary gardens. Unlike the thorny honey locust varieties, this thornless inermis variety is safe around frequented areas while offering light and airy bright green foliage from spring to autumn, capable of filtering light while providing soft and pleasant shade. In autumn, the leaflets take on subtle yellow hues, visually enriching the seasonal landscape. Very hardy and tolerant, Gleditsia ‘Skyline’ adapts well to a wide variety of well-drained soils, including urban or dry ones, and thrives in full sun to partial shade. Its combination of form, delicate foliage, and ease of maintenance makes it an excellent choice as an accent tree, a specimen plant, or a vertical landscape structure for residential or public green spaces.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 3
Exposure
Sun
Watering
Weak
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
Greenish yellow
Fruiting
Decorative dark brown pods
Foliage color
Light green ? yellow (autumn)
Foliage type
Obsolete
Shape
Slender / Open
Garden structure

Size and growth

Height
12–18 m (39–59 ft)
Width
30-35 ft (9-10.5 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.