Hydrangea Heaven at the Washington Park Arboretum

Hydrangea is a genus of over 75 species and 600 named cultivars that are native to a wide range of regions and countries including Japan, Asia, Indonesia, Himalayan Mountains, and the Americas. The name “Hydrangea” stems from the Greek words, hydor meaning “water” and aggeion meaning “vessel”, in reference to the cup-like capsular fruit.

1) Hydrangea macrophylla ‘Madame Emile Mouillere’                                                                                                                                                         Madame Emile Mouillere Hydrangea

  • This award-winning Hydrangea was bred in France over 100 years ago.
  • It’s known for having large, globe-shaped blossoms with blue eyes and serrated, white
    sepals which can turn pink when exposed to excessive sunlight.
  • It typically grows 6ft. tall and 6ft. wide and prefers shade and rich, well-drained soil.

Photo of Madame Emile Mouillere Hydrangea
Shea Cope
Hydrangea macrophylla ‘Madame Emile Mouillere’

2)  Hydrangea quercifolia ‘Flemygea’                                 Snow Queen Hydrangea

  • Snow Queen Hydrangea is a showy cultivar of the well-known Oak-Leaved Hydrangea.
  • It flaunts 12” long, conical, white flowers which slowly turn pinkish-purple with age.
  • Distinctive, deeply-lobed, somewhat coarse oak-like, deep green leaves (to 8″ long) turn attractive shades of bronze, maroon, or purple in autumn.
  • Mature stems exfoliate to reveal a rich brown inner bark which is attractive in winter.

Photo of Snow Queen Hydrangea
Shea Cope
Hydrangea quercifolia ‘Flemygea’

3)  Hydrangea macrophylla ‘Lanarth White’                 Lanarth White Hydrangea

  • Lanarth White Hydrangea is another award-winning hydrangea and is loved for its compact size (3’x3’) and abundance of lovely, lacecap flowers.
  • Its flattened, lacecap flower heads are composed of pure white sepals which radiate around a cluster of tiny, mauve pink to blue (depending on soil pH) florets.
  • This hydrangea is perfect for small gardens or containers.

Photo of Lanarth White Hydrangea
Shea Cope
Hydrangea macrophylla ‘Lanarth White’

4)  Hydrangea aspera ssp. robusta                               Himalayan Tree Hydrangea

  • My personal favorite, the Himalayan Tree Hydrangea, is one of the largest of the Hydrangeas.
  • It can reach up to 18 feet in its native range, but usually tops out at 10’x10’ in the typical landscape setting.
  • The white, lacecap flowerheads contrast wonderfully with the glowing violet central florets.
  • This hydrangea is a late bloomer (August/September), so very few flower starts can be observed at this time.
  • As seen in the attached picture, the pale pink buds of the florets have hardly begun to open so you can just barely see a couple of the little purple-blue flowers.

Photo of Himalayan Tree Hydrangea
Shea Cope
Hydrangea aspera ssp. robusta