- Mature height
- 4m to 6m (approx.)
- Mature width
- 3m to 4m
Gleditsia triacanthos 'Elegantissima' is a compact, thornless form of the honey locust. It carries fine, ferny pinnate leaves on a dense, upright to rounded frame, so the whole plant reads as soft green texture. Foliage emerges fresh green in spring and turns clear yellow before dropping in autumn.
Full sun brings the best colour, though it accepts part shade. It is not fussy about soil provided drainage is reasonable, and it handles frost, heat, wind, alkaline ground and urban pollution. Growth is moderate at 30 to 60 centimetres a year, and it holds a tidy shape with little intervention.
Its restrained size suits courtyards, small front gardens, raised planter beds and narrow verges where a full sized honey locust would overwhelm the space. The open canopy casts light shade, so lawn and underplanting still grow beneath it. Landscapers use it where fine deciduous texture is wanted at manageable scale.
Frequently Asked Questions
About Gleditsia 'Elegantissima'
What is Gleditsia triacanthos 'Elegantissima'?
It is a compact, thornless cultivar of the honey locust, grown for its fine ferny foliage and dense, neatly rounded habit. The leaflets are small and closely set, which gives the canopy a soft, almost textile quality. It is deciduous, colouring yellow in autumn, and it is one of the few honey locusts small enough for a suburban block.
How big does 'Elegantissima' grow?
'Elegantissima' is a compact selection and in most Australian gardens settles at about 4 to 6 metres tall and 3 to 4 metres wide. The parent species is a far larger tree, reaching 12 to 18 metres tall and 8 to 15 metres wide, so size figures quoted for honey locust in general do not apply to this cultivar.
Does it have thorns?
No. 'Elegantissima' is a thornless selection, unlike the wild form of the species, which carries branched spines on the trunk and limbs. That makes it safe to plant near paths, play areas and car parks where people brush past. Pruning and leaf clean up are straightforward, with no protective gear needed.
Is it evergreen or deciduous?
Deciduous. The fine leaflets appear in early to mid spring, hold soft green through summer, turn yellow in autumn and then drop. The small leaflets break down quickly and rarely need raking. Bare winter branching lets sun through to the ground beneath, which is useful on the north side of a house.
When does it flower?
Small greenish yellow flowers appear in spring, usually through October and November. They are lightly fragrant and useful to bees but visually minor, and many gardeners never notice them. Seed pods can follow on mature plants, though this compact form sets few. The tree is grown for foliage, not bloom.
Is it drought tolerant?
Once established it copes well with dry periods, and honey locusts are among the more resilient deciduous trees in hot inland conditions. Through the first two summers it needs regular deep watering to build roots. In prolonged drought a mature tree may shed leaves early, then return normally the following spring.
How do I care for Gleditsia 'Elegantissima'?
Water deeply once or twice a week through the establishment years, then taper off. Mulch the root zone each spring and add a general purpose fertiliser at the same time. Prune in late winter while the tree is dormant, removing crossing or damaged branches to keep the canopy open. It rarely needs more than that.