About
Alcea rosea 'Halo Blush' is a perennial that reaches heights of up to 2 meters. It features lobed green foliage and produces tall spikes adorned with sizable flowers that range from white to pale pink, each highlighted by a deep pink central halo. These blooms typically appear during the summer months.
About the genus
Alcea consists of sturdy biennials or short-lived perennials characterized by large, funnel-shaped blooms arranged in tall, upright racemes during the summer months.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
- Plant type
- Annual Biennial, Herbaceous Perennial
- Habit
- Columnar upright
- Foliage
- Deciduous
- Height
- 1.5-2.5 metres
- Spread
- 0.5-1 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Coastal
Care notes
- Cultivation
- Thrives in well-drained, moderately fertile soil in full sun. May need support on exposed sites, see staking perennials
- Pruning
- Cut back dead foliage after flowering, or pull out and discard - growing as annuals or biennials can help limit the spread of rust
- Propagation
- Propagate by seed sown in gentle heat in mid-winter or in-situ in spring
- Pest resistance
- May be susceptible to cutworms and slugs on young growth, and to capsid bugs, aphids and mallow flea beetles
- Disease resistance
- May be susceptible to hollyhock rust