In September at the Arboretum enjoy the fragrant white flowers of the seven-son flower (Heptacodium miconioides) in the Display Garden and at Lantern Court. See the purple flowers of the Gibraltar bushclover (Lespedeza thunbergii ‘Gibraltar’) borne on cascading sprays in the Sally GrieGibralts entrance drive beds, by the Corning Visitor Center, in the Display Garden and at Lantern Court. Admire the mist flower (Conoclinium coelestinum) in the Arlene and Arthur S. Holden Jr. Butterfly Garden, the Myrtle S. Holden Wildflower Garden and by Blueberry Pond. The Japanese anemones (Anemone hupehensis and Anemone x hybrida) are blossoming at Lantern Court and in the Display Garden near Lotus Pond.
The goldenrods (Solidago) and asters (Symphyotrichum, Eurybia, and Ionactis) are blooming in the fields, the Holden Butterfly Garden and Holdren Wildflower Garden. Check out the stonecrops (Sedum) in the Holden Butterfly Garden, Display Garden and at Lantern Court. In the third or fourth week of September autumn-crocus (Colchicum autumnale) is blooming by the Corning Visitor Center and at Lantern Court. Ornamental grasses of interest include cultivars of fountain grass (Pennisetum alopecuroides, P. orientalis), switch grass (Panicum virgatum), tall moor grass (Molinia caerulea), feather reedgrass (Calamagrostis x acutiflora), and Japanese forest grass (Hakonechloa macra) in the Display Garden and Holden Butterfly Garden.