About
Convolvulus tricolor 'Blue Ensign' is a bushy annual that can reach a height of 30 cm. It features dark green, ovate leaves and produces funnel-shaped flowers that measure 5 cm in diameter. These blooms display a deep blue hue, transitioning to white near the yellow center, and typically appear in the summer months.
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
- Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- 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
- City and courtyard gardens, Cottage and informal garden, Patio and container plants, Coastal, Wildlife gardens
Care notes
- Cultivation
- Best grown in a gritty, well-drained soil in a sheltered, sunny position; alternatively grow in a pot or raised bed. Deadheading will prolong flowering period
- Pruning
- Cut back after flowering
- Propagation
- Propagate by seed sown in mid-spring
- Pest resistance
- Generally pest-free
- Disease resistance
- honey fungus (rarely)