Agastache 'Black Adder' 

Agastache 'Black Adder'


£ 4,29 tax incl.

from3 units:£ 3,99 tax incl.

Availability : Available

Container: 0,7 litre pot

Flowering period: summer flowers

Hardiness zone: zone 8-10

Height: 100 cm to 130cm

Plant spacing: 40 cm



Agastache 'Black Adder' is a recent addition and has become a star bedding plant for the end of summer.

  • It flowers abundantly with long deep violet blue spikes from July until the end of September.
  • A lofty upright habit reaching to about 1 metre high gives the plant a very light and vertical appearance.
  • This aromatic, bee-friendly plant is a joy for all nectar foragers.

All this makes Agastache 'Black Adder' an easy plant to use in different plant compositions.

The vertical structure of this agastache makes it a focus plant to contrast with bushy shapes in the garden.

Its intense flowers go particularly well with the orange umbels of Achillea 'Terracotta', the daisy flowers of the Echinacea, the bluish clouds of Calamintha nepeta 'Blue Cloud' or the blue balls of Echinops ritro 'Veitchs Blue'.

You can leave the dried plants where there are during the winter for decorative purposes. Prune and divide when spring arrives.

And with grasses? Effective association with Panicum virgatum 'Prairie Sky' , Andropogon scoparius 'Prairie Blue', Festuca glauca 'Elijah Blue'

Cultivation: in the sun in ordinary soil, light, well-drained, neutral to alkaline. All the agastaches thrive in soft, well-drained soil and suffer from excessive damp in the winter. Hardiness: - 8° C

Cultivation and Propagation
Soil type:good garden soil, ordinary soil, chalky soils
Culture advice:Planting soil composed: 1/3 coarse sand, 1/3 garden soil, 1/3 horticultural compost, Keep dry during the winter, Well-drained soil with coarse sand, Neutral to alkaline soil
Aspect:full sun
Special maintenance:Prune the plant at the end of winter, Cut off dead flowers
Multiplication Tips:Cutting stems
Garden tips:
Garden value:long flowering, attractive to pollinators, attractive flowering
Garden style:rock garden, cottage garden, seaside garden
Landscape interest:mixed-border, gravel garden, rockery
Position:back of the border, middle of the border

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