What type of BUTTERFLIES are you trying to attract?
Monarchs, swallowtails, all butterflies that like native plants to Maryland.
What NECTAR and HOST plants are in your garden?
Columbine, Beardtongue, Sundrops, Blue wild indigo, Downy woodmint, Lance-leaf coreopsis, Butterfly Weed, Common Milkweed, Swamp Milkweed, Mountain Mint, Early Sunflower, Bee balm, Joe Pye weed, Anise hyssop, coneflowers – several colors, gray goldenrod, Sweet goldenrod, Blue Mistflower, many Asters: New England, Aromatic asters, Lady in Black, etc.