Clematis Giant Star ('Gistar'PBR) (M)
clematis [Giant Star]
Large, vigorous, deciduous climber to about 10m tall, with dark green leaves, reddish when young and large, fragrant, pale pink flowers to 10cm across, produced from mid or late spring to early summer
Buy this plant
Size
Ultimate height
8–12 metresTime to ultimate height
5–10 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Pink | Green Red | ||
|---|---|---|---|---|
| Summer | Pink | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Ranunculaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Climbing
- Potentially harmful
- Skin irritant. Wear gloves and other protective equipment when handling
- Genus
Clematis can be deciduous or evergreen shrubs or herbaceous perennials, mostly climbing by twining leaf-stalks, and often with showy flowers. Some have attractive fluffy seedheads in autumn
- Name status
Trade
- Horticultural Group
- Montana Group clematis are vigorous deciduous climbers with single, 4-petalled flowers opening in late spring and early summer
How to grow
Cultivation
Plant in moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants or a layer of pebbles at the base. Plant with the crown 5-8cm deep to encourage new shoots to grow from below ground level. See clematis cultivation
Propagation
Propagate by softwood cuttings in spring, semi-ripe cuttings in early summer or layering
Suggested planting locations and garden types
- Cottage and informal garden
- Climber and wall shrubs
- Hedging and screens
- Wall side borders
Pruning
See clematis pruning: group one, prune immediately after flowering is finished
Pests
May be susceptible to aphid, slug, snail or caterpillar damage on young growth
Diseases
May be susceptible to honey fungus (rarely), clematis wilt and clematis slime flux
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.