About
Alyssum 'Snow Crystals' is a compact perennial that typically grows to about 15 cm tall, often cultivated as an annual for summer display. During the warmer months, it produces numerous small, fragrant white flowers arranged in rounded clusters. This plant is well-suited for coastal landscapes, rock gardens, or container arrangements.
About the genus
Alyssum includes annuals, evergreen perennials, and sub-shrubs, characterized by their simple foliage. In early summer, they produce short racemes bearing small flowers with four petals, which may be yellow or white.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- Annual Biennial, Bedding
- Habit
- Matforming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1-2 years
- Suggested uses
- Coastal, Cottage and informal garden, Patio and container plants, Rock garden
- Fragrance
- Flower
Care notes
- Cultivation
- Grow in light, moderately fertile, well-drained soil in full sun
- Pruning
- Clip over after the first flush of blooms to promote further flowering
- Propagation
- Propagate by sowing seed under glass in early spring, or in situ in late spring
- Pest resistance
- May be susceptible to slugs and flea beetles
- Disease resistance
- May be susceptible to downy mildews, club root and white blister