Flowering Dogwood 'Ruth Ellen'

Cornus x rutgersensis

Family: Cornaceae
Genus: Cornus (KOR-nus) (Info)
Species: x rutgersensis
Cultivar: Ruth Ellen
Additional cultivar information:(PP7732, aka Ruth Ellen, Rutlan)
Hybridized by Orton
Registered or introduced: 1990



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


15-20 ft. (4.7-6 m)


15-20 ft. (4.7-6 m)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade



Bloom Color:

White/Near White

Bloom Time:

Late Spring/Early Summer



Good Fall Color

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

Patent Information:

Patent expired

Propagation Methods:

From softwood cuttings

By grafting

By budding

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

Marietta, Georgia

Newtown Square, Pennsylvania

Gardeners' Notes:


On Jan 9, 2014, Rickwebb from Downingtown, PA wrote:

A woman plant enthusiast recommended this hybrid of American Flowering Dogwood x Kousa Dogwood for a homeowner at a retirement community where I do a lot of work. I posted four photos in 2014. It is one cultivar of the Stellar Series bred by a Dr Orton at Rutger's University in New Jersey. These trees are intermediate between the two species. I bet the fruit is sterile. One big reason for their introduction was the fear of Discula fungus disease introduced from East Asia hurting many Flowering Dogwoods a lot in the 1990's, but many American plants are still surviving well now and resistant selections also exist.


On Jan 29, 2005, Todd_Boland from St. John's, NL (Zone 5b) wrote:

Lower and more spreading than most flowering dogwoods. This one branches quite low to the ground. Unfortunately, it is susceptible to powdery mildew so plant it in a well aerated area. Bracts are brilliant white.