Thought I'd start a thread for Agastache plants of what mail order places to get them.
High Country Gardens: I've ordered many times and have always been happy.
Flowers By The Sea: I've ordered from many times and have been very happy. They started offering Agastaches this year.
Lazy S's Farm Nursery: I've ordered many times and have always been happy.
Plant Delights: I've ordered from them twice (Salvias) and was happy.
Deer-resistant Landscape Nursery: I've ordered from them 2 or 3 times and have always been happy.
Sooner Plant Farm: I've ordered one Salvia and some Agastaches from them and was happy.
Garden Crossings: I've ordered from them several times and have always been happy.
Santa Rosa Gardens: I've ordered from them several times and have always been happy.
Romence Gardens & Greenhouses: I've ordered from them several times and have always been happy.
Crownsville Nursery: They usually only have a couple of Agastaches to offer. I've ordered from them since 1997 or 1998 and have always been happy.
Logee's Greenhouses: I've ordered from them once before.
Digging Dog Nursery: I haven't ordered from them before.
Garden Harvest Supply: I haven't ordered from them before.
Joy Creek Nursery: I haven't ordered from them before.
Forestfarm: I haven't ordered from them before.
Gardens in the Wood of Grassy Creek: I haven't ordered from them before.
Morningsun Herb Farm: I haven't ordered from them before.
Sandy Mush Herb Nursery: I haven't ordered from them before.
Goodwin Creek Gardens: I haven't ordered from them before.
White Flower Farm: I've ordered plants from them decades ago (mid 1980's) once and was happy.
These are the only places I could think of at the moment. Please share some more and your experiences.