About
Convolvulus tricolor is a bushy annual or short-lived perennial characterized by its dark green, oval foliage. The flowers are funnel-shaped and measure up to 4 cm in diameter, featuring a royal blue hue with white feathering near the petal bases and a yellow center. Although each bloom lasts just a single day, they are produced in succession throughout the summer, providing extended floral display.
About the genus
Convolvulus comprises annuals, perennials, or shrubs that can grow upright or in a scrambling manner. The leaves may be simple or divided palmately, and the flowers are typically solitary or grouped, featuring an open funnel shape.
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
- Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- Herbaceous Perennial, Annual Biennial
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1-2 years
- Suggested uses
- Patio and container plants, City and courtyard gardens, Coastal, Cottage and informal garden, Gravel garden, Wildlife gardens
- Native to
- Mediterranean
Care notes
- Cultivation
- Grow in gritty, well-drained soil in a sheltered, sunny site
- Pruning
- Deadhead to prolong flowering
- Propagation
- Propagate by seed, root softwood cuttings in late summer, or divide in spring
- Pest resistance
- Generally pest-free
- Disease resistance
- honey fungus (rarely)