About

An upright, deciduous perennial forming a clump of green, aromatic leafy stems. Dense spikes of small, violet-blue flowers appear from summer to early autumn.

About the 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

Growing conditions

SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH6

Plant details

Plant typeHerbaceous Perennial
HabitBushy
FoliageDeciduous
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Gravel garden, Mediterranean climate plants
FragranceFoliage

Care notes

CultivationCan be used as a gap-filler in herb gardens or in sunny, dry places, for example at the base of walls. Grows best in well-drained alkaline soil but will tolerate poor acid soils. Tends to be short-lived
PruningRemove spent flowering spikes through the season
PropagationPropagate by division in spring or propagate by semi-ripe cuttings in late summer for overwintering under cover. This cultivar is sterile
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free