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Rosa Silver Anniversary ('Poulari') (HT)
  • RHS AGM

rose [Silver Anniversary]

Strong, bushy upright rose about 70cm tall, with glossy light green foliage, and slightly fragrant, shapely, fully double white blooms to 10cm across, repeat-flowering in summer and autumn

Synonyms
Rosa 'Poulari'
Rosa Isis
see moreRosa Karen Blixen

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Green
Autumn White Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H6
Botanical details
Family
Rosaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling
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
Hybrid Tea, or Large-flowered bush roses are upright, thorny shrubs with large, usually glossy leaves and large, double often fragrant flowers that may be solitary or in threes

How to grow

Cultivation

Grow in full sun with fertile, humus-rich, moist but well-drained soil. For best flowering apply a balanced fertiliser and mulch in late winter or early spring and a balanced fertiliser again in early summer - see rose cultivation

Propagation

Propagate by softwood cuttings in early to mid spring, hardwood cuttings in late summer to autumn or by chip budding in summer

Suggested planting locations and garden types
  • Cottage and informal garden
  • Patio and container plants
  • City and courtyard gardens
  • Flower borders and beds
  • Cut flowers
Pruning

Pruning group 15 (floribunda and hybrid tea roses)

Pests

May 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

Diseases

May 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

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