About
Rosa 'Blairii Number One' is a climbing rose that can reach heights of approximately 3.5 meters or more. It features robust mid-green foliage and produces large, flat, fully double flowers in a delicate shade of pink. This variety is known for its strong fragrance and continuous blooming from summer through autumn. It was first introduced in the 1830s and shares similarities with the more commonly cultivated 'Blairii No. 2'.
About the genus
Rosa consists of either deciduous or semi-evergreen shrubs and climbing plants that often feature thorny stems. The leaves are typically compound and pinnate, while the flowers can appear alone or in clusters. In certain varieties, the blooms are succeeded by prominent red or purple fruits.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Roses
- Habit
- Climbing
- Foliage
- Deciduous
- Height
- 2.5-4 metres
- Spread
- 1.5-2.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- City and courtyard gardens, Cottage and informal garden
- Fragrance
- Flower
- Toxicity
- Fruit 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
- Cultivation
- Grow in fertile, humus-rich, moist but well-drained soil in full sun. 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
- Pruning
- See pruning group 17 (climbing roses)
- Propagation
- Propagate by hardwood cuttings in autumn, softwood cuttings (under glass) in spring or summer or by chip budding in summer
- Pest resistance
- 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
- Disease resistance
- May be susceptible to rose black spot, rose rust, replant disease, rose dieback, and rose powdery mildews and sometimes honey fungus. May also be susceptible to disorders rose blindness and flower balling