Agastache ‘Blue Boa’
Agastache ‘Blue Boa’ is a newly imported multiple award-winning selection from the USA. It carries large bottle brush heads of intense violet-blue flowers for months from late spring until late autumn. It’s best grown in full sun and, although drought tolerant once established, it is happier if given some supplementary summer irrigation. Height in flower 60-90cm, width 40cm.