Size: Qt Agastache 'Blue Boa' (Hyssop),
Bloom Time: Summer,Fall (Jun,Jul,Aug,Sep) Growth Rate: Fast Dimensions: 30" tall x 24" wide
The showiest of them all with long, wide, deep-violet flower spikes held strongly over green leaves in summer. Drought tolerant once established and attracts hummingbirds as well as butterflies.
Full sun to part shade