About
Argyranthemum Madeira Crested Merlot ('Bonmadmerlo') is a perennial sub-shrub that can also be cultivated as an annual. This plant produces dark red blooms with lighter centers throughout the summer. Its foliage consists of finely cut, blueish-green leaves that emit a pleasant fragrance.
About the genus
Argyranthemum consists of evergreen perennials or sub-shrubs with a woody base. The leaves can be either simple or finely divided, and the plants produce daisy-like flower heads in white, yellow, or pink from late spring through autumn.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H2
Plant details
- Plant type
- Shrubs, Annual Biennial
- Habit
- Bushy, Columnar upright
- Foliage
- Evergreen
- 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
Care notes
- Cultivation
- Grow in moderately fertile, well-drained soil in full sun. Deadhead regularly to prolong flowering and pinch growing tips to keep compact. Mulching may protect rootstock from frost, and helps to conserve water. Water in prolonged dry spells
- Pruning
- Deadhead regularly, pruning group 10
- Propagation
- Root softwood cuttings in spring, and semi-hardwood cuttings of non-flowering shoots at other times
- Pest resistance
- May be susceptible to leaf miners
- Disease resistance
- May be susceptible to Crown Gall