Robinia
False acacia
- Height × spread
- 5m – 25m × 3.5m – 15m
- Position
- Full sun
Availability
Generally available in Spring & Autumn
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
Best known for the Common False Acacia, a big tree with many ornamental forms including the gold foliaged 'Frisia'. There are also a number of smaller ornamental forms available, some of which have showy pink flowers. The rose acacia (Robinia hispida) has an exotic air and makes a modest tree around 6 metres in height. There is also a useful hybrid Robinia x slavinii 'Hillieri' which has lilac pink fragrant flowers in June, and can be grown as a small tree. There are a number of other forms of ornamental value, some of them have suckering habits, some have brittle branches, all have beauty.; Hazardous: Robinia psueoacacia and its forms are harmful if eaten.
- Flower colour
- White
- Foliage colour
- Green, Yellow
- Fruit colour
- Brown
- Variegated
- No
- Scent
- Yes, some varieties
- Shape
- Bell, Round
- Height
- 5m – 25m
- Spread
- 3.5m – 15m
- Season of interest
- Spring, Summer, Autumn, Winter
- Evergreen
- Deciduous
- Garden style
- Seaside garden, Scented garden, Mediterranean garden, Exotic garden
- Sun or shade
- Likes full sun
- Soil type
- Chalk, Gravelly soil, Loam (normal), Poor soil, Sandy soil
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Winter hardiness
- Varies, most are hardy
- Borders & containers
- Borders
- Use for
- Architectural, Bee attraction, Bird attraction
- Maintenance
- Easycare – low/no maintenance
- Hazards
- Yes, some poisonous and some stems are prickly/thorny
AutumnNow
Autumn · Planting
Remove suckers
Remove any suckers that have appeared round the base of the plant. They can often be pulled up, but it may be necessary to use secateurs or loppers to detach them from the parent plant.
Spring
Spring - late · Outdoors
Feed young plants with slow release fertiliser
Spread a slow release fertiliser around the base of the plant to the edge of the foliage spread, so that it can feed the roots. It is helpful for this to be applied for several years.
This is a simple way to provide a nutrient boost until the plant becomes well established.
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Summer
Summer - late · Planting
Prune to maintain the tree
Keep the plant looking attractive and healthy by removing dead branches, branches that cross or rub each other, and those which spoil its appearance.
Prune in late summer as the tree is less likely to be damaged, or to begin to bleed from the wood that has been cut.
Planting & general
Planting
Protect & support young trees
Attach a newly planted tree or tall shrub over 1m to a tree stake to give support and prevent windrock. Use a tree guard to stop tree bark being eaten by animals, especially in areas with deer - removing bark injures a tree and in worst case can kill it.
Found in
More Robinia
Robinia pseudoacacia
Common acacia, False acacia, Black locust, Locust
Robinia pseudoacacia 'Frisia'
Golden acacia, Golden locust, Common acacia, False acacia, Black locust, Locust
Robinia pseudoacacia
Common acacia, False acacia, Black locust, Locust
Robinia pseudoacacia 'Lace Lady'
False acacia
Robinia pseudoacacia 'Tortuosa'
Common acacia, False acacia, Black locust, Tortured locust
Robinia pseudoacacia 'Umbraculifera'
Mop head acacia, Common acacia, False acacia, Black locust, Locust