Agastache 'Black Adder'


from 3 units: £4.09
from 5 units: £3.99

Availability : Available

Description :


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

- 0,7 litre pot

- Hardiness zones : zone 8-10
- Height: 100 cm to 130cm
- Plant spacing: 40 cm

- Flower colour: purple
- Flowering period: summer flowers
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* by phone You can also call us on +33 (0)297436255 from 9 am to 5 pm (French time). Please note that we only speak French or a little English!

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Pépinière Le Clos d'Armoise
Moustoir Lorho


- The nursery is closed to visitors - Opening on Wednesday 22 August

The nursery is closed to visitors on Monday, Tuesday, Thursday, Friday, Sunday and public holidays.