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ShrubsFruit Edible

Rubus idaeus 'Polka'PBR (F)
  • RHS AGM
  • RHS Plants for pollinators

raspberry 'Polka'

'Polka' is a stout raspberry with slightly thorny canes. A primocane raspberry with the potential for two fruit crops in the year, starting to ripen in late July with the biggest yield in autumn. Fruits are large and red, with a fresh flavour and good keeping quality

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green Green Red
Autumn Green
Winter
Position
  • Full sun
Aspect

South–facing or East–facing or West–facing

Exposure
Sheltered
Hardiness
H6
Botanical details
Family
Rosaceae
Native to the UK
No
Foliage
Deciduous
Habit
Suckering
Genus

Rubus can be deciduous or evergreen shrubs, often scrambling with bristly or prickly stems bearing simple, lobed, palmate or pinnate leaves and 5-petalled flowers followed by juicy, sometimes edible fruits

Name status

Accepted

How to grow

Cultivation

Grow in rows between parallel wires for support. Mulch with acidic material such as composted bark. See Raspberry cultivation

Propagation

Propagate by division in the dormant season. Lift new canes along with their rootballs. Choose only newly planted, disease-free stock from which to propagate

Suggested planting locations and garden types
  • Cottage and informal garden
  • Banks and slopes
  • Hedging and screens
Pruning

Prune all canes to ground level in late winter

Pests

Can get aphids, leafhoppers, raspberry beetle, glasshouse red spider mite and gall mites

Diseases

Good general resistance to disease

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