About
Rosa pisocarpa, the cluster rose, is a dense, spreading species rose to about 90 cm with spiny stems and small, mid-green leaves. Small clusters of single, lilac-pink blooms with creamy-yellow stamens are once-flowering in midsummer, followed by rounded, red hips. A rewarding compact species rose for a sunny, well-drained border.
About the genus
Rosa, the roses, are deciduous or semi-evergreen shrubs and scrambling climbers with usually thorny stems bearing pinnate leaves and solitary or clustered, five-petalled flowers in a vast range of colours and forms in summer, often followed by showy red, orange or purple hips. Indispensable garden plants for a sunny, well-drained position.
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeRoses
HabitBushy
FoliageDeciduous
Height0.5-1 metres
Spread0.5-1 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden, Wildlife gardens
FragranceFlower
ToxicityFruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Care notes
CultivationGrow in fertile, humus-rich, moist but well-drained soil in full sun or part shade. Mulch with well-rotted organic matter in late winter or early spring, and for best flowering apply a general rose or shrub fertiliser in early spring and again in early summer. See rose cultivation
PruningSee pruning group 20 (shrub roses); don't prune after flowering if fruits (hips) are required
PropagationPropagate by softwood cuttings in early to mid spring, hardwood cuttings in late summer to autumn or by chip budding in summer; propagate by seed; species roses can be propagated by seed but need stratification and germination may take two seasons
Pest resistanceMay be susceptible to aphids, rose leafhopper, glasshouse red spider mite, scale insects, caterpillars, large rose sawfly, rose slugworm sawfly and rose leaf-rolling sawfly. Deer and rabbits can cause damage
Disease resistanceMay be susceptible to rose black spot, rose rust, replant disease, rose dieback, and rose powdery mildew and sometimes honey fungus. May also be susceptible to disorders rose blindness and flower balling