Overview
Fraxinus pennsylvanica 'Johnson' is a spreading branched trees in the genus Fraxinus, part of the Oleaceae family, with deciduous foliage. Fraxinus pennsylvanica 'Johnson' grows best in full sun, and tolerates most soils and alkaline and neutral pH. Its UK hardiness is rated H6. Suggested uses include coastal, cottage and informal garden and wildlife gardens.
About
Fraxinus pennsylvanica 'Johnson' is a cultivar of Fraxinus, a genus of medium to large deciduous trees known for their pinnate leaves and winged fruits. This spreading branched tree thrives in full sun and can be grown in a variety of soil types including chalk, clay, sand, and loam, provided the soil is moist but well-drained and alkaline to neutral in pH. It is hardy in the UK (H6) and suitable for coastal, cottage, informal, and wildlife gardens. Interest in this tree is mainly during spring and summer.
Growing conditions
Best soil and position for Fraxinus
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Sand, Loam
- Soil pH
- Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
Fraxinus pennsylvanica 'Johnson' size, habit and characteristics
- Plant type
- Trees
- Habit
- Spreading branched
- Foliage
- Deciduous
- Suggested uses
- Coastal, Cottage and informal garden, Wildlife gardens
Care notes
Pruning and caring for Fraxinus pennsylvanica 'Johnson'
- Propagation
- Propagate by seed or grafting
- Pest resistance
- Generally pest-free
- Disease resistance
- Ash dieback has recently been found in the UK. Restrictions have been put in place (from 29 October 2012) regarding both the importation of ash from abroad and the movement of ash within the UK. May also be susceptible to honey fungus
Frequently asked questions
Where is the best place to plant Fraxinus pennsylvanica 'Johnson'?
Fraxinus pennsylvanica 'Johnson' prefers full sun. It suits exposed and sheltered positions.
What soil does Fraxinus pennsylvanica 'Johnson' need?
Fraxinus pennsylvanica 'Johnson' is adaptable and grows happily in most soil types, including chalk, clay, sand and loam. It prefers alkaline and neutral soil. Aim for soil that stays moist but well-drained.
Is Fraxinus pennsylvanica 'Johnson' hardy in the UK?
Fraxinus pennsylvanica 'Johnson' has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.
How do I propagate Fraxinus pennsylvanica 'Johnson'?
Propagate by seed or grafting.
More in the Fraxinus genus
- Fraxinusash
- Fraxinus angustifolia 'Monophylla'
- Fraxinus angustifolia 'Pendula'ash 'Pendula'
- Fraxinus angustifolia 'Variegata' (v)
- Fraxinus angustifolia subsp. oxycarpa 'Golden Desert'
- Fraxinus angustifolia subsp. syriacaSyrian ash
- Fraxinus baronianaBaron's ash
- Fraxinus chinensisChinese ash
