1) Hydrangea macrophylla ‘Madame Emile Mouillere’
- A blizzard white beauty all summer, long considered the best white mop head.
- A charming companion to evergreen shrubs.
- A beautiful 70-year old specimen graces the Hydrangea Collection along the Arboretum Drive.
2) Leucothoe davisiae (Sierra Laurel)
- Native to the mountains of northern California and southern Oregon.
- One of 4,000 species in the Ericaceae family.
- A 20-year old specimen can be found in the Rhododendron Glen.
3) Rosa moschata ‘Plena’ (Double Musk Rose)
- Cultivated in European and American gardens for centuries.
- Grown for its strong, clove musk fragrance and abundant alabaster white flowers.
- A 65-year old specimen is flourishing by the entrance to the horticulture headquarters.
4) Stewartia pseudocamellia var. koreana (Korean Stewartia)
- Native to Japan and Korea, this tree has garnered the Royal Horticulture Society’s Award of Garden Merit.
- The flowers are white with orange anthers, shaped like those of the related camellia.
- A graceful 64-year old specimen is growing beautifully at the south end of Arboretum Drive.
5) Philadelphus lewisii (Lewis’ Mock Orange)