A pretty shrub that grows to 3 feet tall and has aromatic, grey-green foliage
that's a perfect foil for brighter perennials.
Flowers are a deep dark blue and bloom for a long time in mid-summer through autumn.
Once established, this shrub needs no attention and can take dry conditions.
It blooms prolifically every year.
Cut back to one foot in late winter or early spring for best results.
The vivid blue flowers attract many bees and butterflies.
Zone 5 and up.
Sold out for 2008.