Are you located in the US?
Flowers By The Sea is in CA. Per their website; ships plants throughout the United States, including Arizona, California, Florida and Hawaii. Minimum order is $25.00, not including shipping.
Flowers By The Sea carries and has it. https://www.fbts.com/salvia-x-...
Beautiful flowers, wished I'd included it my order this spring.
If you're interested, we have an Agastache and Salvias forum here. https://garden.org/forums/view...