Cornus Species, Chinese Dogwood, Japanese Dogwood, Kousa Dogwood

Cornus kousa

Genus
Cornus (KOR-nus)
Species
kousa (KOO-sa)
Synonym
Benthamia kousa
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
15-20 ft. (4.7-6 m)
Spacing
12-15 ft. (3.6-4.7 m)
Hardiness
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)
Danger
N/A
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
By grafting
By budding
Seed Collecting
Allow unblemished fruit to ripen; clean and dry seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Auburn, Alabama

Dothan, Alabama

Blytheville, Arkansas

San Leandro, California

Fort Collins, Colorado

Winterville, Georgia

Nilwood, Illinois

Carmel, Indiana

Muncie, Indiana

Barbourville, Kentucky

Bardstown, Kentucky

Louisville, Kentucky

Coushatta, Louisiana

Valley Lee, Maryland

Mansfield, Massachusetts

Mashpee, Massachusetts

Medford, Massachusetts

North Chelmsford, Massachusetts

Reading, Massachusetts

Ann Arbor, Michigan

Grand Rapids, Michigan

Traverse City, Michigan

Natchez, Mississippi

Lincoln, Nebraska(2 reports)

Piscataway, New Jersey

Raritan, New Jersey

Croton On Hudson, New York

Fairport, New York

Poughkeepsie, New York

Highlands, North Carolina

Hudson, North Carolina

Columbus, Ohio

Dundee, Ohio

Cottage Grove, Oregon

Portland, Oregon

Allentown, Pennsylvania

Hazleton, Pennsylvania

Mercer, Pennsylvania

Schwenksville, Pennsylvania

Wilkes Barre, Pennsylvania

Collierville, Tennessee

Knoxville, Tennessee

Nashville, Tennessee

Gordonsville, Virginia

Lexington, Virginia

Palmyra, Virginia

Roanoke, Virginia

Pullman, Washington

Cambridge, Wisconsin

show all

Featured Videos

Gardener's Notes:

15
positives
4
neutrals
0
negative
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B
Gordonsville, VA (Zone 7a) | July 2021 | positive

This graceful small tree is a common sight in the old downtowns of the Virginia Piedmont (zone 7a). They put on a spectacular display for...Read More

J
Collierville, TN | September 2020 | positive

My tree is now loaded with fruits. They taste like persimmons. Yum!

R
Downingtown, PA | January 2014 | neutral

This is a pretty plant with bark prettier than the American Flowering Dogwood. However, it produces lots of large, soft, aggregate, round...Read More

R
Hudson, NC | April 2012 | positive

I have a kousa dogwood that has been blooming beautifully for 12 or 13 years now. My wife and I love it. Recently we noticed what we ass...Read More

1
Manning, SC | September 2011 | positive

I have a Cornus kousa, var. angustata that blooms in June and is reliably evergreen in SC. It is planted under mature hardwoods and its ...Read More

Q
North Chelmsford, MA (Zone 6b) | June 2010 | positive

I raised my Kousa dogwood from a 15-inch baby to its present 12-15 feet. It has flowered for two years, and the bracts last and last. H...Read More

L
Weymouth, MA | April 2010 | neutral

Help is what I'm actually looking for. I bought my cornus kousa this past Oct./Nov.(02189-zone 6) and put in ground within a week or two ...Read More

W
Petersburg, VA | June 2009 | positive

In Petersburg, Southern Virginia, Zone 7A, we planted a Kousa Dogwood twelve years ago. My husband has expressed disappointment that it ...Read More

N
Raritan, NJ | June 2008 | positive

My daughter bought me this plant 5 years ago and we planted it in the front of my house. I love the flowers on this plant but I also had ...Read More

E
E
Williamsburg, MI | November 2006 | positive

Regarding the beautiful photo of the Cornus kousa bark from Mongomery County, PA: What is the age of the tree and what are its height/...Read More

G
Fairport, NY | September 2005 | positive

I can't find enough praise for this plant, even if it is an exotic here. I have two plants that are nearly 25 years old. One was trained ...Read More

G
Traverse City, MI | May 2005 | positive

I have had 3 of these trees since 2001 and when they bloom they are lovely and long lasting with the flower starting out green, brighteni...Read More

M
BeachTown, CA (Zone 10a) | May 2005 | neutral

I planted two of these trees in my yard early this spring. They are in an area with light shade part of the day, and I was careful to pla...Read More

T
St. John's, NL (Zone 5b) | January 2005 | positive

For gardeners living in coastal zone 5, this plant will perform far better than Cornus florida. It grows quite well in southern Newfound...Read More

D
Schwenksville, PA (Zone 6a) | November 2004 | positive

Good small tree for flowers, fruit and winter interest. The bark on mature specimens is beautiful and adds much interest to the winter l...Read More

T
| April 2004 | neutral

I have a Kousa that was planted for me four years ago. Last year it was covered with blooms; however this year, there is not a single bl...Read More

B
B
fonthill, ON (Zone 6b) | January 2003 | positive

I prefer the Kousa to my native Cornus Florida. The flowers are longer lasting and appear after the spring rush. Mine are sensitive to dr...Read More

L
Grove City, OH (Zone 6a) | January 2003 | positive

The true flowers of this species are small; the bracts surrounding the flowers remain for many weeks, gradually changing color from white...Read More

R
| September 2002 | positive

THE TREE--A smallish tree, growing best in part sun. Most of the variety I have seen are no more thant 15 - 20 feet in height. However,...Read More

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