Agastache 'Blackadder' - Giant Hyssop variety

Image of Agastache 'Blackadder' - Giant Hyssop variety
Image of Agastache 'Blackadder' - Giant Hyssop variety
Alternate Image of Agastache 'Blackadder' - Giant Hyssop variety
Alternate Image of Agastache 'Blackadder' - Giant Hyssop variety
  • Flowers attract bees

  • Flowers attract butterflies

  • Plant for chalk soil

  • Plant for sun

Strong bottlebrush-like spikes of bright violet-blue flowers emerge from dark buds above aromatic foliage. Blooms are produced for a long period from summer into autumn. Flowers are loved by bees and butterflies. 

Prefers a well-drained soil in full sun. Will tolerate drought when established.

Height: 24 - 36 inches / 60 - 90cm                      

Spread: 18 - 24 inches / 45 - 60cm

Contact Us For Availability

Currently our products are only available for collection from the nursery or from us at one of the many shows we’ll be attending. We hope to offer a mail order service from September 2017, but until then please contact us to check stock levels.

Delivery Options

Currently they are only available for collection from the nursery or from us at one of the many shows we’ll be attending. We hope to offer a mail order service from September 2017.

  • Direct Collection From Us

    Either from the nursery or from one of the events we’ll be attending. If coming to the nursery then please call first to make sure we’ll be around. If we are away at an event then collection of orders may not be possible.