About
'Royal Highland' is a semi-evergreen perennial characterized by its grey-green foliage and tall spikes reaching 1.5 meters adorned with yellow blooms that have an apricot tint and a purple center.
About the genus
Verbascum comprises annuals, biennials, perennials, and subshrubs, typically characterized by their hairy foliage and five-petaled, cup-shaped blooms.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Alkaline
- Soil moisture
- Well-drained
- Aspect
- West-facing, South-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Columnar upright
- Foliage
- Semi evergreen
- Height
- 1-1.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1-2 years
- Suggested uses
- Coastal, Gravel garden, City and courtyard gardens, Cottage and informal garden, Wildlife gardens
Care notes
- Cultivation
- Prefers a poor, well-drained alkaline soil in full sun. If grown in a more fertile soil the plants become larger and will need support
- Pruning
- Cut back old stems to the base after flowering
- Propagation
- Divide mature plants in the spring or take root cuttings in winter
- Pest resistance
- May be susceptible to Figwort Weevil and some moth caterpillars
- Disease resistance
- May be susceptible to powdery mildews