About

Agastache 'After Eight' is a compact, upright perennial known for its dense growth habit. It features aromatic leaves that range from dark green to bronze-purple, set on dark purple stems. During summer and autumn, this plant produces slender spikes of tubular, two-lipped flowers in a deep purple-blue hue, which are highly appealing to pollinators.

About the genus

Agastache consists of herbaceous perennials featuring straightforward, fragrant foliage and small tubular flowers with two lips, arranged in whorls that create compact spikes during the summer and autumn months. While some species may be somewhat tender, they can also be cultivated as annual bedding plants.

Growing conditions

Sunlight
Full sun
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained, Well-drained
Aspect
East-facing, South-facing, West-facing
Exposure
Exposed, Sheltered
UK hardiness
H5

Plant details

Plant type
Herbaceous Perennial
Habit
Clump forming
Foliage
Deciduous
Height
0.5-1 metres
Spread
0.1-0.5 metres
Time to full height
2-5 years
Suggested uses
City and courtyard gardens, Cottage and informal garden, Patio and container plants, Wildlife gardens
Fragrance
Foliage

Care notes

Cultivation
Will grow well in well-drained soil preferably in full sun. Although a drought tolerant plant, it might need watering in extreme dry weather spells
Pruning
Deadhead throughout the season to encourage more flowers
Propagation
Propagate by seed or by division in spring
Pest resistance
Generally pest-free
Disease resistance
May be susceptible to powdery mildews