Agastache ‘Blue Boa’ or Hyssop has purple flowers.

Agastache ‘Blue Boa’ (Giant Hyssop) PP#24,050

(Anise Hyssop, Hummingbird Mint)

Unlike any other Agastache, this beauty produces luxurious, deep violet-blue flower spikes held over ultra-green foliage. Very attractive to hummingbirds and butterflies. Height 20-36″.

This beauty produces luxurious, deep violet-blue flower spikes held over ultra-green foliage. The flower spikes are long, wide and extremely showy. Height 30-36". PP#24,050.

Agastaches attracts bees, butterflies and hummingbirds to the garden. Prefers average, dry to medium well drained soils. Drought tolerant when established. Tolerates heat, poor soils. Deadhead to promote new blooms. Deer and rabbit resistant.

USDA Hardiness Zone(s): 5-10
Exposure: Full Sun
Bloom Time(s): June-September