Hydrangea serrata 'Forget Me Not' (L)
hydrangea 'Forget Me Not'
A compact, deciduous shrub to 1m high, with narrowly ovate, serrated green leaves that tint red in the sun. In summer, flat lace-cap type flower heads bear clusters of tiny fertile flowers, with a few larger florets held on short, delicate stems around the edges. Flower colour varies depending on the pH of the soil, and deepens as the season progresses, from near white when the flowers open to rich pink, lilac or blue in late summer
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Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Red | |||
|---|---|---|---|---|
| Summer | Pink Purple Blue | Green Red | ||
| Autumn | Green Red | |||
| Winter |
Position
- Partial shade
Aspect
East–facing or North–facing or West–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Hydrangeaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Spreading branched
- Potentially harmful
- Skin allergen. Wear gloves and other protective equipment when handling. Pets (dogs, cats): Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- 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
- Lace cap hydrangeas are compact deciduous shrubs with broadly ovate leaves and flat or gently domed clusters of small fertile flowers, with showy sterile flowers around the margin
How to grow
Cultivation
Grow in any moist but well-drained soil in partial shade or grow in sun if soil remains reliably moist. Improve chalky soils with organic matter to support good growth. See shrubby hydrangea cultivation for further advice
Propagation
Propagate by softwood cuttings in early summer, or by hardwood cuttings in winter
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Flower borders and beds
- Wall side borders
Pruning
See pruning group 4 (hydrangeas)
Pests
May be susceptible to aphids, capsid bug, red spider mite, stem and bulb eelworm, vine weevil and scale insects
Diseases
May be susceptible to a leaf spot, powdery mildews, grey moulds (Botrytis) and honey fungus (rarely)
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