AGASTACHE 'Blackadder'

Blue - purplish blue

Height - 60-90cm (24-36in)

Spread - 45-60cm (18-24in)

Herbaceous - Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch. - upright, clump-forming perennial. Lance-shaped, blue-green leaves are 3-5cm (1¼-2in) long

Hardy - average winter - Hardy through most of the UK apart from inland valleys, at altitude and central/northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens. Plant can withstand temperatures down to -10°C (14°F) - borderline

Full sun

Additional Features - Good to know - wildlife plant. Attracts bees, butterflies and other insects

Pests & Diseases - powdery mildew in dry summers

Place of origin - garden origin

Flower Shape - Spikes - dense, terminal spikes to 20cm (8in) long

Hardiness - Frost hardy (down to -5) -

Scented Plants - Scented foliage

Seasonal Interest - Autumn

Summer

Soil Conditions - Fertile well drained soil

Wildlife - Bee friendly

Butterfly friendly