Sedum, Showy Stonecrop 'Purple Emperor'


Family: Crassulaceae (krass-yoo-LAY-see-ee) (Info)
Genus: Sedum (SEE-dum) (Info)
Cultivar: Purple Emperor
Additional cultivar information:(aka Washfield Purple, Washfield Ruby)
View this plant in a garden




Cactus and Succulents

Foliage Color:


Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)


9-12 in. (22-30 cm)

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)


USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

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)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Full Sun

Sun to Partial Shade



Bloom Color:

Fuchsia (Red-Purple)

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall

Late Fall/Early Winter


Grown for foliage



Other details:

Unknown - Tell us

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:


Propagation Methods:

By dividing the rootball

From leaf cuttings

From herbaceous stem cuttings

Allow cut surface to callous over before planting

Seed Collecting:

Unknown - Tell us


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

, (2 reports)

Clayton, California

Elk Grove, California

Pittsburg, California

Denver, Colorado

Cherry Valley, Illinois

Hampton, Illinois

Machesney Park, Illinois

Mount Prospect, Illinois

Greenville, Indiana

Jeffersonville, Indiana

Davenport, Iowa

Dracut, Massachusetts

Roslindale, Massachusetts

Uxbridge, Massachusetts

Dearborn Heights, Michigan

Pinconning, Michigan

Royal Oak, Michigan

Westland, Michigan

Luverne, Minnesota

Saint Paul, Minnesota

Troy, New Hampshire

Elizabeth City, North Carolina

Mooresville, North Carolina

Belfield, North Dakota

Clyde, Ohio

Portland, Oregon

Salem, Oregon

Wilkes Barre, Pennsylvania

Clarksville, Tennessee

Knoxville, Tennessee

Quinlan, Texas

Lexington, Virginia

Stafford, Virginia

Kalama, Washington

Lake Forest Park, Washington

Grafton, Wisconsin

Casper, Wyoming

show all

Gardeners' Notes:


On Dec 6, 2014, coriaceous from ROSLINDALE, MA wrote:

The rich dark maroon color of the foliage and stems is extraordinary in the garden. I find the flowers less valuable than the striking foliage.

But this is the floppiest tall sedum that I know. The stems will splay out and flop unless supported in some way.


On Feb 28, 2012, Gabrielle from (Zone 5a) wrote:

A nicely, dark colored Sedum. Blooms August-September in my garden.


On Sep 3, 2009, floating_stump from Grafton, WI wrote:

It starts out purplish green, and gets darker as the summer progresses. The flowers are a lighter, pinkish tone than the leaves. The bees love it, especially the bumbles. It blooms in late august, a little earlier than my other light-green-with-pink-blossoms sedum. It self-seeds, but after a summer, the seedlings have grown to less than two inches tall, so I'm not sure it's worth trying to cultivate any. As others have mentioned, it flops over. Mine opens up in the middle, and the branches flop about halfway down. I'm a little unhappy about this, since I deliberately planted it where I could see it from the house in the winter. Next year I'm going to just put some string around the outside of the plant. I give it a lot of water.


On Nov 17, 2007, kd2000 from toronto,
Canada wrote:

Similar to other's comments I have not had great luck with this plant, it splays open in the middle despite pinching in the spring and division. It is a fabulous colour, but unlike my other showy sedums (white, autumn joy) it does not seem to be able to stay erect.


On Aug 3, 2007, mystic from Ewing, KY (Zone 6a) wrote:

Received the Royal Horticultural Society (RHS), 2006 Award of Garden Merit.


On Oct 22, 2006, Lady_fern from Jeffersonville, IN (Zone 6a) wrote:

Like "Autumn Joy" and "Frosty Morn" this sedum is best grown through a support to keep it upright. Cattle fencing works well because it is green and can easily be cut to size. The purple foliage is always attractive and is a nice focal point.


On Jul 24, 2006, saya from Heerlen,
Netherlands (Zone 8b) wrote:

In my opinion strong and healthy. For a long time the darkest sedum. Found by Grahaham Cough from plant nursery Washfield, Hawkhurst - Kent.


On May 11, 2006, Terry from Murfreesboro, TN (Zone 7a) wrote:

Mine are now two years old, and suffered from benign neglect, then frequent transplanting until last year. This spring, they've rebounded and filled out very nicely, with gorgeous coloration. I'm hoping they'll do really well in their (now permanent) home!


On Mar 31, 2006, rshepherd from Grass Lake, MI (Zone 5b) wrote:

I have 3 of these plants and grow them in full sun. I love the foliage, which is beautiful red purple color. All 3 spray out in the middle which is a disappointment to me (maybe thats why it is advertised as ground cover). This spring I have cut off all dead plant material and will pinch them back in intervals throughout the growing season to see what happens. I want to see if I can encourage this plant to grow more upright than on the ground.


On Feb 1, 2006, sharonmi from Westland, MI (Zone 6a) wrote:

I've only had them for two years, but so far they are a disappointment. They all splayed out in the middle, and the foilage got kinda crispy looking. I will pinch them back hard this spring, maybe that will improve their appearance.