Butterflies in Mind -- Zinnia
Susan C. Dunlap
A collection of 50 images as if seen from a butterfly’s point of view. Includes the names of native Zinnia species and the most complete list of US butterflies that will feed on Zinnia blossoms.
Butterflies in Mind -- Asclepias
Susan C. Dunlap
“Milkweed is the single most important plant for Monarch butterflies. This lavishly illustrated book contains details about the structure and cultivation of native Milkweeds, information about the 139 nectar-feeding butterflies they...
Butterflies in Mind -- Monarch
Susan C. Dunlap
This abundantly illustrated volume enables you to select from a complete list of well described perennial nectar plants that are known to attract & feed Monarch butterflies. Over 40 genera are described that are suitable to be grown...
Butterflies in Mind -- Perennials
Susan C. Dunlap
Butterflies in Mind - Perennials. This book is a definitive guide to perennial nectar plants preferred by US butterflies. It empowers you to feed, attract, support (and help identify) nectar-feeding butterflies that reside in the US....

Colias eurytheme, the Alfalfa, can be found in numerous states in every region of the country.
Favorite nectar plants include: Asclepias and Lantana
USDA Growing Zones for these plants include: 3,4,5,6,7,8,9,10

PD images courtesy of:
unknown
USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA
USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA
USFWS midwest