#16: Giant Hyssop (Agastache pallida 'Tutti Frutti')
says, "I tried Tutt-Frutti multiple times but it would never overwinter in my garden. Lovely plant.
Located on the north shore of Nassau County Long Island, NY zone 6/7, where it is humid in the summer."
added, "I've planted Agastache 'Tutti Frutti' before, but sometimes it doesn't come back the following spring. I always try to make sure the soil has excellent drainage, but it could be that we get too cold for it in the winters. I'm not sure whether it's hardy to zone 6a, 6b, or 7a. I've gone through a lot of websites where I've seen it listed as one of the three.
It could very well be that it's hardy to 6b, but it any case, it deserves to be grown in the garden for beauty, scent, long blooming, low maintenance, and especially for hummers, butterflies and bees!
One of my favorites!"