Planting low flowers at the edge of a lawn and high flowers at the edges of trees or along a fence is a way to enhance edge habitat. Locate a major part of the garden in a sunny, protected area. Butterflies are cold-blooded and need sun to warm their bodies' temperature enough to fly on cool mornings. They also use the sun for orientation. Place flat stones at various locations in the garden for basking.
Butterflies hate high winds and appreciate windbreaks.
If there are any natural structures to temper the buffeting wind, leave them standing, as butterflies will often congregate there on blustery days. Most butterflies are vagabonds, stopping off temporarily at your garden to partake of food, water and shelter. When food sources disappear, butterflies go elsewhere. Design gardens with large drifts of color. Butterflies are first attracted to flowers by color, and a large mass is easier to spot.