Rosa Susan Williams-Ellis ('Ausquirk'PBR) (S)
rose [Susan Williams-Ellis]
a medium shrub rose, to about 1.2m, producing fragrant, white, fully-double rosette flowers in small clusters from early summer to late autumn
Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | White | Green | ||
| Autumn | White | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or East–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Rosaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Genus
Rosa can be deciduous or semi-evergreen shrubs or scrambling climbers, with usually thorny stems bearing compound pinnate leaves and solitary or clustered flowers. Flowers may be followed by showy red or purple fruits in some varieties.
- Name status
Trade
- Horticultural Group
- Shrub roses are large shrubs with usually thorny stems bearing large leaves and fragrant, single to double flowers in clusters in summer, and usually also in autumn
How to grow
Cultivation
Grows best in fertile, humus-rich, moist but well-drained soil in a sunny, open position. Mulch in late winter and, to improve flowering, apply a balanced fertiliser in late winter or early spring and again in early summer. See rose cultivation
Propagation
Propagate by semi-ripe cuttings in late summer or hardwood cuttings in autumn, or by T-budding in summer
Suggested planting locations and garden types
- City and courtyard gardens
- Patio and container plants
- Cottage and informal garden
Pruning
Pruning group 20 (roses)
Pests
Aphids, including rose aphid, are the most common rose pest. Can also be affected by leafhoppers, glasshouse red spider mite, scale insects, caterpillars, large rose sawfly, rose leaf-rolling sawfly and leaf-cutter bees. Deer and rabbits can also cause damage
Diseases
Rose black spot, rose rust and rose powdery mildew are the most common rose diseases. Can also be affected by rose dieback, replant disease, a canker, honey fungus and a virus
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.