Sign 10
Privacy Screen
Bloom Time: Spring
Boxwood Green Mountain
Buxus ‘Green Mountain’
Family: Boxwood (Buxaceae)
Holly ‘Blue Princess’/‘Blue Prince’
Ilex × meserveae ‘Blue Princess’/‘Blue Prince’
Family: Holly (Aquifoliaceae)
Rhododendron ‘Capistrano’
Rhododendron ‘Capistrano’
Family: Heath (Ericaceae)
Mountain Laurel
Kalmia latifolia
Family: Heath (Ericaceae)
Shrub
Description: Green Mountain Boxwood: 5–7’ H × 2–3’ W. Evergreen year-round with small white spring flowers. Blue Prince & Blue Princess Holly: 12–18’ H × 6–8’ W. Evergreen year-round with small white spring flowers; red winter berries on Blue Princess. Rhododendron: 5’ H × 6’ W. Evergreen year-round with lemon-yellow, trumpet-shaped spring blooms. Mountain Laurel: 4–15’ H × 4–8’ W. Evergreen year-round with cup-shaped rose-to-white flowers that last for weeks.
An evergreen privacy screen creates a beautiful ornamental boundary while reducing noise. Mountain laurel is native to New England, and holly and boxwood have long been used in seasonal traditions and handcrafted wooden objects.
Photos, from top: Agnieszka Kwiecień, Nova, CC BY-SA 4.0, via Wikimedia Commons; David J. Stang, CC BY-SA 4.0, via Wikimedia Commons; Ryan Somma, CC BY-SA 2.0, via Wikimedia Commons; Juliancolton, CC BY-SA 4.0, via Wikimedia Commons.
More plant info
Why these four together
A privacy screen works best when it mixes plants. Each of these four keeps its leaves all year, so the screen stays green in January, and each flowers at a slightly different time in spring.
Green Mountain boxwood
Bred at Sheridan Nurseries in Ontario, Canada in the mid-1960s by crossing English boxwood with a hardier Asian boxwood. It grows naturally into an upright cone. Boxwood’s very fine-grained wood has long been carved into combs, boxes and small tools.
Blue Princess holly
Bred by Kathleen Meserve, a home gardener in St. James, Long Island, who crossed English holly with a hardy holly from northern Japan in the 1950s. ‘Blue Princess’ came out in 1973. It is a female plant, and it needs the male ‘Blue Prince’ nearby to set its red berries.
Capistrano rhododendron
Bred by Dr. David Leach, who spent years working toward a hardy yellow rhododendron; he considered ‘Capistrano’ his best. The American Rhododendron Society named it a 2005 Rhododendron of the Year for its Great Lakes region.
Mountain laurel
The only one of the four that is native here. It grows wild from southern Maine to Florida and is the state flower of Connecticut and Pennsylvania. Its flowers spring-load their pollen, flicking it onto visiting bees. The wood was carved into spoons, which gave it the name spoonwood. All parts of the plant are poisonous to eat.
Sources
- Buxus ‘Green Mountain’, World Plants
- Ilex × meserveae, Oregon State University Landscape Plants
- Blue Princess holly, University of Arkansas Extension
- Rhododendron ‘Capistrano’, Chicago Botanic Garden
- Rhododendron of the Year 2005, American Rhododendron Society
- Kalmia latifolia, Wikipedia
- Buxus, Wikipedia
Guided tours of the arboretum are free, by appointment. Text Mary at 978-887-4202.
