Making the perfect match : a plant-by-plant guide. Achillea (yarrows) ; Agastache (agastaches) ; Ajuga (ajugas) ; Alchemilla (lady's mantle) ; Allium (alliums) ; Amsonia (bluestars) ; Anemone (anemones) ; Aquilegia (columbines) ; Artemisia (artemisias) ; Asarum (wild gingers) ; Asclepias (milkweeds) ; Aster (asters) ; Astilbe (astilbes) ; Athyrium (athyriums) ; Baptisia (baptisias) ; Brunnera (Siberian bugloss) ; Calamagrostis (feather reed grasses) ; Campanula (bellflowers) ; Carex (sedges) ; Caryopteris (caryopteris) ; Centranthus (red valerian) ; Chelone (turtleheads) ; Chrysanthemum (chrysanthemums) ; Cimicifuga (bugbanes) ; Coreopsis (coreopsis) ; Delphinium (delphiniums) ; Dianthus (dianthus) ; Dicentra (bleeding hearts) ; Digitalis (foxgloves) ; Echinacea (echinaceas) ; Eryngium (eryngiums) ; Eupatorium (eupatoriums) ; Euphorbia (euphorbias) ; Gaillardia (blanket flowers) ; Gaura (gaura) ; Geranium (hardy geraniums) ;