Agastache ‘Blackadder’

Family: Lamiaceae

Agastache ‘Blackadder’ is a short lived, herbaceous perennial plant that produces aromatic leaves, which are beautifully complemented by spires of handsome blue coloured, edible flowers, during the summer months.  This is a super plant to grow for bees, butterflies, and hoverflies.  Agastache ‘Blackadder’ flowers provide plenty of food for a wide range of pollinating insects.

I find that Agastache ‘Blackadder’ is best placed in a very bright and sunny spot.  These plants are ideally suited to growing in well drained soils.  So, whether your soil is neutral, acid, or alkaline, if you have free draining, sandy soil, Agastache ‘Blackadder’ will be happy.  If you garden on a damp or wet site, or you have a heavy soil that’s consistently wet during the winter months, then I’d recommend that you consider growing Agastache ‘Blackadder’ in a pot or planter.  These hardy perennials make good container plants.  Agastache ‘Blackadder’ plants will be much more likely to survive through until the following winter, if the plants are grown in a free draining soil or compost, rather than a wet soil.  However, I find that Agastache ‘Blackadder’ is a short lived perennial that survives for just a few summers.

When they’re in flower, Agastache ‘Blackadder’ plants will grow up to around 70cm (2.3ft) to 1m (3.3ft) tall.  The eventual height and size of your plant will depend on the soil and your plant’s particular growing conditions.

This is an easy to grow perennial plant that doesn’t require any particular care or attention.  I’ve found Agastache ‘Blackadder’ to be a strong growing and self supporting plant; I’ve not needed to stake or support any of my plants.

I’ve enjoyed watching the bees, butterflies, and other insects, feeding from my Agastache ‘Blackadder’ plant’s flowers.  In the UK, Agastache ‘Blackadder’ plants usually flower from June until September.

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