Agastache nepetoides, YELLOW GIANT HYSSOP, is a wildflower in the Lamiaceae family. It prefers medium watering, grows to 6 feet tall (or more) and blooms during summer and fall. It grows in the Eastern United States. It an be grown from seed and favors Zones 2-8. It is called YELLOW GIANT HYSSOP, however, the it often presents nearly white blossoms.

Agastache nepetoides is reported to attract Danaus plexippus, MONARCH.

http://www.missouribotanicalgarden.org has useful information about this wildflower.

An informative paper mentions that it may be a useful plant for bee forage and may be pollinated by butterflies. http://www.newfs.org/docs/pdf/Agastachenepetoides.pdf