May Color Appears at the Washington Park Arboretum (Part II)
- Rhododendron ‘Firefly’ Grid 16-B
- Rhododendron japonicum Grid 40-1E
- Rhododendron ‘Knap Hill Apricot’ Grid 39-B
- Rhododendron occidentale (Pink Form) Grid 37-1W
- Rhododendron ‘Sandpiper’ Grid 37-B