Centranthus Species, Jupiter's Beard, Keys to Heaven, Red Valerian

Centranthusruber

Family
Caprifoliaceae (cap-ree-foh-lee-AY-see-ee)
Genus
Centranthus (sen-TRAN-thus)
Species
ruber (ROO-ber)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Smooth
Height
24-36 in. (60-90 cm)
Spacing
15-18 in. (38-45 cm)
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
Magenta (pink-purple)
Red
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Can be grown as an annual
Bloom Characteristics
Flowers are good for cutting
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From woody stem cuttings
From softwood cuttings
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Regional

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

Alameda, California

Baywood-Los Osos, California

Berkeley, California

Canoga Park, California

Carlsbad, California

Clayton, California

Concow, California

Crescent City, California

Crockett, California

Encinitas, California

Eureka, California

Fairfield, California(2 reports)

Fremont, California

Fresno, California

Gilroy, California

Irvine, California

Long Beach, California

Martinez, California

Menlo Park, California

Merced, California

Mission Viejo, California

Nipomo, California

Oroville, California

Rancho Cucamonga, California

Redwood City, California

Sacramento, California(2 reports)

Salinas, California

San Diego, California

Simi Valley, California

Sonoma, California

Thermalito, California

Colorado Springs, Colorado

Denver, Colorado

Fort Collins, Colorado

Grand Junction, Colorado

Littleton, Colorado

Keystone Heights, Florida

Barnesville, Georgia

Jackson, Georgia

Rincon, Georgia

Boise, Idaho(2 reports)

Crystal Lake, Illinois

La Grange Park, Illinois

Mount Prospect, Illinois

Spring Grove, Illinois

Crown Point, Indiana

Davenport, Iowa

Iowa City, Iowa

Olathe, Kansas

Ottawa, Kansas

Barbourville, Kentucky

Ewing, Kentucky

Hebron, Kentucky

Monrovia, Maryland

Oxon Hill, Maryland

Norton, Massachusetts

Rockland, Massachusetts

Springfield, Massachusetts

Garden City, Michigan

Ludington, Michigan

Pinconning, Michigan

Albertville, Minnesota

Saint Paul, Minnesota(2 reports)

Sparks, Nevada

Greenfield, New Hampshire

Trenton, New Jersey

Alamogordo, New Mexico

Albuquerque, New Mexico(2 reports)

Farmington, New Mexico

Santa Fe, New Mexico

Coram, New York

Elba, New York

Himrod, New York

Rochester, New York

Wallkill, New York

Southport, North Carolina

, Nova Scotia

Cleveland, Ohio

Fort Jennings, Ohio

Madison, Ohio

Ashland, Oregon

Chiloquin, Oregon

MILTON FREEWATER, Oregon

Mill City, Oregon

Milton-Freewater, Oregon(2 reports)

Portland, Oregon

Springfield, Oregon

Norristown, Pennsylvania

York, Pennsylvania

Christiana, Tennessee

Knoxville, Tennessee

Murfreesboro, Tennessee

Belton, Texas

Dallas, Texas

Iredell, Texas

Lubbock, Texas

Magnolia, Texas

Plano, Texas

Salt Lake City, Utah(2 reports)

Lanexa, Virginia

Mineral, Virginia

Bellevue, Washington

Concrete, Washington

Kalama, Washington

Olympia, Washington

Port Townsend, Washington(2 reports)

Puyallup, Washington

Seattle, Washington(2 reports)

Spokane, Washington

Stanwood, Washington

Twisp, Washington

Madison, Wisconsin

Pleasant Prairie, Wisconsin

show all

Featured Videos

Gardener's Notes:

20
positives
7
neutrals
4
negatives
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J
J
| July 2022 | positive

I love this relaxing herb, but it is a VERY DANGEROUS plant for women who might become pregnant, causing neural tube defects in babies....Read More

B
Concrete, WA | April 2016 | positive

I've been gardening for 40 years in 3 different areas of Washington state. Western Wash. has acid soil---and at my home in the mountains...Read More

M
Alta Loma, CA | March 2015 | neutral

Easy to grow, tall (3-4') background plant with dark pink airy blossoms & grayish green foliage. Prune away flopping stems. Deadhead for ...Read More

B
Baywood-Los Osos, CA | January 2015 | positive

It's blooming now and this is January on the Central Coast of California. Butterflies and bees like it and there is not much else bloomi...Read More

C
ROSLINDALE, MA | May 2014 | neutral

This is a handsome, long-blooming perennial. I've seen it successfully grown in my area, but not by me. Another plant just faded out afte...Read More

L
Madison, WI | May 2012 | positive

Just acquired some Centranthus ruber....
We'll see what the butterflies think.

G
Gresham, OR | April 2012 | positive

I grow it in rich moist soil in half-day shade and it blooms well. Slugs (the bane of western Oregon gardeners) don't seem to bother it.

L
Twisp, WA | February 2012 | positive

I like this guy. It's not at all invasive in my zone 5 garden, but does a good job of being a colorful filler in front of the delphiniums...Read More

S
Lubbock, TX (Zone 7b) | June 2010 | positive

I planted Centranthus ruber " Alba" many years ago in my meadow garden under an oak. Our climate is hot and dry and the soil very alkal...Read More

V
Milton Freewater, OR | June 2010 | positive

I have this plant growing in the most convenient locations in my garden. It luckily has planted their seeds in locations between my peoni...Read More

K
K
(Zone 7a) | May 2010 | positive

Very long lasting flower head. I like that!

T
Plano, TX (Zone 8a) | May 2010 | positive

I planted three Centranthus in my front no-lawn garden last year and was disappointed in the lack of blooms and vigor. This year...wow. T...Read More

G
Trenton, NJ | September 2008 | positive

I had a tough spot. My backyard swimming pool is bounded by my house on one side and surrounded by a retaining wall on the other, and on...Read More

W
Martinez, CA (Zone 9a) | April 2008 | neutral

This plant is very prolific and has a tendency to spread rapidly;hence will fill in a barren area.However, in warmer zones will show inva...Read More

Z
Z
Seattle, WA | April 2007 | negative

This plant is very hard to get rid of if you do not want it. Besides seeds, it can grow back if enough root is in the ground.

B
Spokane, WA | January 2007 | positive

HI! Ive had this plant for almost five years. It grows great in my droughty conditions. Its a short lived plant, but there are always ...Read More

J
San Diego, CA | July 2006 | neutral

Just planted it this year - and agree it is a "takeover" plant. I have cut back pretty agressively as I have a small space. Intend to rel...Read More

G
(Zone 5a) | January 2006 | positive

I like this plant because it does really well under a maple tree where many other plants die. I have not found it invasive there, though...Read More

I
I
(Zone 8b) | October 2005 | positive

I find that few plants are perfect for all conditions & all have something that aren't right for us, but I love Centranthus ruber. I like...Read More

N
Sparks, NV (Zone 7a) | April 2005 | positive

Centranthus ruber is NOT "too invasive" in the Reno-Sparks, NV region. It does reseed moderately, and spreads a little, but it's nothing...Read More

P
(Zone 8b) | January 2005 | negative

I don't really like this plant as it is too invasive. It invades my whole garden, including the concrete paths. It appears through the cr...Read More

C
Albuquerque, NM | May 2004 | positive

Sprawling and invasive, best suited where chaos is desirable. Although it reseeds regularly, I have not found that the seedlings are dif...Read More

C
Berkeley, CA | April 2004 | positive

Centranthus grows wild all over the San Francisco Bay area. Some botanists that I know say that is native to this area. It comes in red...Read More

Y
| April 2004 | positive

Doing fantastically well at taking over whole sections of my garden here in South Australia. Our temperatures vary from around 0 in wint...Read More

E
| December 2003 | positive

This lovely plant thrives in the Pacific Northwest. It blooms thru the Summer and Fall. So far this Fall, it has withstood several fros...Read More

J
Seattle, WA (Zone 8a) | October 2003 | neutral

I have heard the roots are good for the soil... fixing nitrogen maybe? Anyway, the plant is invasive here. I once cut the flowers becau...Read More

C
Iredell, TX | October 2003 | negative

I have grown this plant for about three years, and I am not impressed with it. There is little scent and the flowers are not that impres...Read More

D
D
Springfield, MA (Zone 6a) | October 2003 | neutral

Well, I'm going to say neutral so far - it is my first year with this plant. I planted them Spring 2003. I found the stems tended to l...Read More

V
Barnesville, GA (Zone 8a) | October 2003 | negative

Too floppy for me, moved it to various locations with no notice of better habit. Scent and flowers not enough for me to keep it going eit...Read More

K
| May 2002 | positive

Can be invasive in mild climates, such as Sunset Zone 24 in the coastal areas of southern California (U.S.) Helpful to cut it often and ...Read More

T
T
Murfreesboro, TN (Zone 7a) | March 2001 | neutral

Easily grown from seed; may even bloom the first year (mine did.) Produces rosy-red, fragrant flowers in clusters 2-3 inches across from...Read More

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