Rubus fruticosus agg. 'Oregon Thornless' (B)
blackberry 'Oregon Thornless'
'Oregon Thornless' is a blackberry with long, thornless canes to 2.5m in height and dark green, lobed leaves from spring to autumn. Bears 5-petalled white flowers in summer followed by heavy crops of juicy, rounded, dark purple-black fruits in late summer
Size
Ultimate height
1.5–2.5 metresTime to ultimate height
2–5 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | White | Green | Black | |
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
West–facing or East–facing or South–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Rosaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- 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
Well-drained, neutral soil. Mulch with well-rotted compost or manure. May have the potential to become a nuisance if not managed well. See blackberry cultivation for further advice
Propagation
Propagate by tip layering or from cuttings
Suggested planting locations and garden types
- Cottage and informal garden
- Wildlife gardens
- Edible fruit
Pruning
Cut out old canes following fruiting and tie in new canes
Pests
May be susceptible to aphids, leafhoppers, raspberry beetle and gall mites
Diseases
May be susceptible to grey moulds and honey fungus (rarely)
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.