Agastache 'Summer Glow'
giant hyssop 'Summer Glow'
'Summer Glow' is a clump-forming perennial, to 75cm tall, with aromatic, ovate, dark green leaves. Spikes of pale yellow-orange flowers with dark reddish-brown calyces are borne from summer into autumn
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Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Green | |||
---|---|---|---|---|
Summer | Orange Yellow | Green | ||
Autumn | Orange Yellow | Green | ||
Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered 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
- Cottage and informal garden
- City and courtyard gardens
- Gravel garden
- Patio and container plants
- Flower borders and beds
Pruning
Remove spent flowering spikes through the season to prolong flowering
Pests
Generally pest-free
Diseases
May be affected by powdery mildews
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