Hydrangea macrophylla 'Altona' (H)
hydrangea 'Altona'
'Altona' is a small deciduous shrub with broadly ovate leaves. Hortensia-type with large rose-red sterile florets, turning to green then deep red in autumn. Blues well on acid soils
Size
Ultimate height
0.5–1 metresTime to ultimate height
5–10 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Blue Red | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or North–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Hydrangeaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Potentially harmful
- May cause mild stomach upset if ingested, contact with foliage may aggravate skin allergies. Wear gloves and other protective equipment when handling
- Genus
Hydrangea can be deciduous or evergreen shrubs, or self-clinging climbers, with flowers in clusters usually comprising both small fertile and more showy sterile flowers; often good autumn colour
- Name status
Accepted
- Horticultural Group
- Hortensia hydrangeas (also known as mopheads) are compact bushy deciduous shrubs with broadly ovate leaves and rounded flower clusters composed almost entirely of showy sterile flowers
How to grow
Cultivation
Grow in moist but well-drained soil in sun or partial shade
Propagation
Propagate by softwood cuttings
Suggested planting locations and garden types
- City and courtyard gardens
- Patio and container plants
- Cottage and informal garden
- Low Maintenance
- Flower borders and beds
Pruning
Pests
Can get aphids, capsid bug, glasshouse red spider mite and hydrangea scale
Diseases
Generally disease free
Get involved
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