About
Antirrhinum 'Scarlet Giant' is a bedding plant cultivated as an annual, reaching heights of up to 90 cm. It features elongated green leaves and produces upright clusters of bright red blooms from summer through autumn.
About the genus
Antirrhinum consists of annuals, perennials, or sub-shrubs characterized by simple foliage and tubular flowers with two lips. These flowers can appear either individually or in terminal racemes, blooming during the summer and autumn months.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Sand, Chalk, Loam
- Soil pH
- Neutral, Alkaline, Acid
- Soil moisture
- Well-drained, Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- Annual Biennial
- Habit
- Bushy
- Foliage
- Deciduous, Semi evergreen
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1-2 years
- Suggested uses
- Wildlife gardens, Cottage and informal garden, City and courtyard gardens, Patio and container plants
Care notes
- Cultivation
- Grow in a sunny position in well-drained soil
- Pruning
- No pruning required, but deadheading will prolong the flowering period
- Propagation
- Propagate by seed sown at 16-18°C in late summer or early autumn, and overwinter young plants under glass, or by seed in early spring
- Pest resistance
- May be susceptible to aphids
- Disease resistance
- May be susceptible to antirrhinum rust, and powdery mildews