False Acacia
Robinia pseudoacacia
Large and quick, with its troubles mostly up in the leaves — apart from honey fungus, which is not.
Light Full sun
Height 14 m
Spread 26 ft 3 in
Spacing 800 cm
Spacing & sowing
- Plant spacing
- 26 ft 3 in
- In-row spacing
- 26 ft 3 in
- Between rows
- 32 ft 10 in
- Square-foot density
- Not suited to SFG
Growing
- Type
- Tree · Perennial
- Botanical family
- Mixed / other
- Sunlight
- Full sun
- Feeding
- All-purpose balanced
- Frost tolerant
- Yes
- Flowering
- June
Through the year
- Apr–Jun Bud Break
- Jun–Oct Flowering
- Oct–Dec Leaf Fall
- Dec–Dec Winter Dormancy
- Jan–Apr Winter Dormancy
Companions
Sambucus, Cotinus, Gleditsia, Native grasses
Pests & problems
- Leaf miners Larvae that tunnel pale wandering trails or blotches inside the leaf itself. Pick off and destroy mined leaves; damage is usually cosmetic.
- Gall mites Robinia gall midge
- Honey fungus A fatal root disease of woody plants: white fungal sheets under the bark and honey-colored toadstools at the base. Remove the plant with as much root and stump as possible.
Garden allies
Beneficial predators that hunt this plant's pests — grow their favourite flowers nearby to recruit them. companion plant
- Parasitic wasps Braconidae & TrichogrammaHunts Leaf miners
Tiny, stingless wasps that lay eggs in or on caterpillars, aphids, and moth eggs — the white cocoons riding a hornworm are their calling card, so leave that caterpillar be. Umbel flowers with shallow nectar keep the adults fuelled.
The Cottage Garden Companion — the gardener's herbarium at cottagegardencompanion.com