The Plantsman’s Nursery

The Plant list

Common Name


Lilac flowers open from dark purple black buds July-Oct. Ht 75cm. Any well drained not bone dry soil. Sun. Useful for its vertical lines. Unlike many Agastache this is reliably perennial.


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SKU: 255 Categories: , ,

Plant Details: AGASTACHE Black Adder


Variety: Black Adder

Soil type: Well drained soil

Common name: Giant Hyssop

Family: Labiatae

Flower colour: Purple

Flower month: Jun, Jul, Aug, Sep, Oct

Hardy: Hardy

Foliage colour: Green

Aspect: Part Shade, Sun

Evergreen: Deciduous

Cut flower: Yes

Height: 75

Spread: 40

Flower type: Single

Leaf colour: Green

Seed month: Nov

Seed colour: Brown

Winter grow conditions: Outside

Container Compost: Soil or Loam Based

Web rating: Woottens rating 10/10

Special uses: Butterflies, Bees

Pot Size: 14cm

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