Agastache 'Summer Sunset'PBR
giant hyssop 'Summer Sunset'
A compact perennial to around 50cm tall with clumps of erect, branched stems bearing aromatic, grey-green leaves and spikes of tubular, pink-flushed orange flowers arranged in whorls from summer into autumn
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Grey Silver | |||
|---|---|---|---|---|
| Summer | Orange Pink | Green Grey Silver | ||
| Autumn | Orange Pink | Green Grey Silver | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
ShelteredDrought resistance
Yes Hardiness
H3Botanical details
- Family
- Lamiaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Genus
Agastache are herbaceous perennials with simple, aromatic leaves and small 2-lipped tubular flowers in whorls forming dense spikes, in summer and autumn; some are rather tender but can be grown as annual bedding
- Name status
Accepted
How to grow
Cultivation
Grows best in well-drained, fertile soils in full sun
Propagation
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Flower borders and beds
- Wall side borders
Pruning
No pruning required but deadheading may prolong flowering
Pests
Generally pest-free
Diseases
May be susceptible to powdery mildews
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.