August at the Arboretum
In August at the Holden Arboretum marsh and rose mallow (Hibiscus moscheutos cultivars and hybrids) are in bloom around the ponds in the Display, Rhododendron, and Butterfly Gardens, and on the north side of the Suzanne and Jonathan Dick Meadow west of Corning Lake where the yellow flowers of brown-eyed susans (Rudbeckia triloba) are in abundance. By mid-month the yellow flowers of stiff goldenrod (Solidago rigida) will also be blooming in the Meadow and the Prairie Gardens. Water lilies (Nymphaea) are flowering in the Display Garden, Butterfly Garden, and in Corning Lake, especially the east side near Fordham Island. At Lotus Pond in the Display Garden the light yellow flowers of American lotus, Nelumbo lutea are in bloom along with a hybrid between the American lotus and the sacred lotus, Nelumbo ‘Mrs. Perry D. Slocum, pink with shades of yellow on the north side. Check out the light purple flowers of Allium ‘Millenium’ in the Display Garden and by the Gardner Terrace on the northwest side of Corning Lake.
In the Butterfly Garden the tall ‘Autumn Sun’ coneflowers (Rudbeckia ‘Autumn Sun’) preside over a riot of bloom including butterfly bushes (Buddleia), garden phlox (Phlox paniculata), orange coneflower (Rudbeckia fulgida ‘Goldsturm’), blazing stars (Liatris), and the sweetly fragrant summersweet (Clethra alnifolia ‘Ruby Spice’). Nine foot tall cup plants (Silphium perfoliatum) have showy yellow flowers by Reflecting Pond and are also on the east side of the Display Garden. At sixteen feet in height is Hibiscus ‘Tosca’ with large lavender flowers in the Butterfly and east side of the Display Garden. There are a number of monarch butterflies flitting around this year and some of their favorite flowers are the native Joe-pye weed (Eutrochium sp.) and ironweed (Vernonia gigantea) whose purple flowers may be seen in the Butterfly, Wildflower, Display, and at Lantern Court. The light yellow flowers of the perennial sunflower, Helianthus ‘Lemon Queen’ grace the Butterfly Garden, west of the lily pool and the south side of the Display Garden, Sally Gries Entry Beds, and Lantern Court.
In the Prairie Garden, don’t miss the yellow flowers of prairie dock (Silphium terebinthinaceum) on their tall flower stalks and the compass plant (Silphium laciniatum), species that goldfinch are attracted to. There are also Silphium in bloom at Lantern Court. In the Myrtle S. Holden Wildflower Garden and the Arlene & Arthur S. Holden, Jr. Butterfly Garden enjoy the bright red royal catchfly (Silene regia), cardinal flowers (Lobelia cardinalis), and the cool blue lobelia (Lobelia siphilitica). Just south of the sandstone rockery in the Wildflower Garden is feather-bells, Stenanthium gramineum with creamy white flowers, alongside the yellow flowers of wild senna, Senna hebecarpa, and the purple flowers of northern blazing-star, Liatris scariosa.
In the Sally Gries Entry Beds along Sperry Road and inside the east gate of the Helen S. Layer Rhododendron Garden the late panicle hydrangeas (Hydrangea paniculata ‘Tardiva’) will be in bloom by mid-to late August. The white flowers of Hydrangea paniculata ‘Pink Diamond’ on the south side of the Display Garden will turn pink in August. Smell the fragrant purple flowers of Phlox paniculata ‘Laura’ and the white flowers of Hosta ‘Guacamole’ in the Rhododendron Discovery Garden. See the orange flowers of Crocosmia ‘Emily McKenzie’, the swan crososmia, C. masoniorum at Lantern Court’s perennial border and in the Butterfly and Display Garden, and the golden yellow flowers of Crocosmia ‘George Davison’ in the Display Garden.