Agastache 'Black Adder'

This reliable, long-flowering perennial, also known as Giant Hyssop, has a neat, upright, form and aromatic herby foliage. 

- From July until late autumn, strong upright stems produce masses of dark purple to blue bottlebrush-type flowers. Deadheading regularly will prolong the flowering time until the frost.

- Its mid-green pointed foliage is highly aromatic with a fresh spicy scent, and is known to have some traditional herbal and culinary uses. 

- Requires well-draining soil in full sun or dappled shade, and does not like areas that get too wet in winter. A very common cottage garden plant due to its abundant flowering and tall upright form, making it also a staple in prairie-style planting combined with ornamental grasses. It has good drought tolerance, once established, and is also suited for coastal and Mediterranean-style gardens too. Its flowers can make a nice addition to cut flower arrangements. 

- It is an absolute magnet for a wide range of pollinator species, from bees, hoverflies, to butterflies and everything in between.

- Can be considered short-lived, and so may need replacing every few years. This can be helped by dividing congested clumps every 3-4 years, and by planting appropriately so it is protected from very wet winter gardens. 

- Height and Spread approx. 60-90cm x 40-60cm. 

- Supplied in a 9cm pot