hydrangea [Speedy Red Improved]
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A deciduous shrub to 1.2m high with broadly oval, toothed green leaves. Dome-shaped clusters of strongly coloured flowers, from crimson red to deep purple, are produced from mid summer into early autumn; flowers emerge pale green and colour develops from the margins to the centre as the flowers mature. Flower colours may vary depending on the pH of the soil
![hydrangea [Speedy Red Improved]](https://img.juefan.top/plantsync/rhs_reference/original/378095.webp)
Scientific classification
- Species
- hydrangea [Speedy Red Improved] (Hydrangea macrophylla Speedy Red Improved ('Hba215911'))
- Genus
- Hydrangea
- Family
- Hydrangeaceae
- Skin allergen. Wear gloves and other protective equipment when handling
- Toxicity
- Shrubs
- Plant type
- 1-1.5 metres
- Height
- 1-1.5 metres
- Spread
- Deciduous
- Foliage
- Bushy
- Habit
- Spring · Summer · Autumn
- Season of interest
- Partial shade
- Sunlight
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- Ideal temperature
hydrangea [Speedy Red Improved] pictures
Distribution of hydrangea [Speedy Red Improved]
Distribution map
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Culture
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Toxicity
Skin allergen. Wear gloves and other protective equipment when handling
Quick identification of hydrangea [Speedy Red Improved]
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hydrangea [Speedy Red Improved] care guide
- Keep soil consistently moist, especially in warm weather
- Watering
- Partial shade
- Sunlight
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- Ideal temperature
Watering
Keep soil consistently moist, especially in warm weather
Fertilizing
Hydrangea feed in spring and again early summer
Pruning
Use the method for the hydrangea type: remove faded mophead flowers to the first healthy bud pair; paniculata and arborescens may have last year's stems shortened to healthy bud pairs. Climbing hydrangeas need overlong shoots trimmed after flowering. Most types are pruned in late winter or early spring; climbing hydrangeas are pruned after flowering in summer.
Propagation
Propagate by softwood cuttings in early summer, or by hardwood cuttings in winter.
Growing
Grow in moist but well-drained, humus rich soil, in a lightly shaded spot with shelter from cold, drying winds. Mulch annually in spring. Soil additives may be required to maintain specific flower colours. See shrubby hydrangea cultivation for more detailed advice
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Common pests and diseases
Diseases
May be susceptible to a leaf spot, powdery mildews, grey moulds (Botrytis) and honey fungus (rarely)
Pests
May be susceptible to aphids, capsid bug, red spider mite, stem and bulb eelworm, vine weevil and scale insects
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