Overview
Forsythia intermedia 'Nimbus' is a bushy deciduous shrub in the genus Forsythia, part of the Oleaceae family, with deciduous foliage. Forsythia intermedia 'Nimbus' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H5. Suggested uses include specimen shrubs and informal hedges.
About
Forsythia intermedia 'Nimbus' is a bushy, deciduous cultivar of the Forsythia genus, which belongs to the olive family Oleaceae. This cultivar thrives in full sun or partial shade and is suitable for south-, west-, or east-facing aspects, tolerating both exposed and sheltered conditions. It grows well in a variety of soil types including chalk, clay, loam, and sand, with a preference for moist but well-drained soil across acid, alkaline, or neutral pH levels. Hardy to UK zone H5, 'Nimbus' is ideal for use as a specimen shrub or in informal hedges and can be propagated by semi-hardwood cuttings.
Wikipedia contributors, CC BY-SA 4.0 — Forsythia × intermedia
About the genus
Forsythia, is a genus of flowering plants in the olive family Oleaceae. There are about 11 species, mostly native to Eastern Asia, but one native to Southeastern Europe. Forsythia – also one of the plant's common names – is named after the botanist William Forsyth.
Wikipedia contributors, "Forsythia", CC BY-SA 4.0 — Forsythia
Growing conditions
Best soil and position for Forsythia
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
Forsythia intermedia 'Nimbus' size, habit and characteristics
- Plant type
- Deciduous shrub
- Habit
- Bushy
- Foliage
- Deciduous
- Suggested uses
- Specimen shrubs, Informal hedges
Care notes
Pruning and caring for Forsythia intermedia 'Nimbus'
- Pruning
- Prune immediately after flowering to maintain shape and encourage growth
- Propagation
- Semi-hardwood cuttings
- Pest resistance
- Generally pest-free
- Disease resistance
- Honey fungus, Forsythia gall
Frequently asked questions
Where is the best place to plant Forsythia intermedia 'Nimbus'?
Forsythia intermedia 'Nimbus' prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Forsythia intermedia 'Nimbus' need?
Forsythia intermedia 'Nimbus' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
How do I prune Forsythia intermedia 'Nimbus'?
Prune immediately after flowering to maintain shape and encourage growth.
Is Forsythia intermedia 'Nimbus' hardy in the UK?
Forsythia intermedia 'Nimbus' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Forsythia intermedia 'Nimbus'?
Semi-hardwood cuttings.