Photo by Melody

PlantFiles: Celandine Poppy, Wood Poppy
Stylophorum diphyllum

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Family: Papaveraceae (pa-pav-er-AY-see-ee) (Info)
Genus: Stylophorum (sty-loh-FOR-um) (Info)
Species: diphyllum (dy-FIL-um) (Info)

12 vendors have this plant for sale.

23 members have or want this plant for trade.

Category:
Perennials

Height:
12-18 in. (30-45 cm)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
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)

Sun Exposure:
Partial to Full Shade

Danger:
Unknown - Tell us

Bloom Color:
Orange
Bright Yellow

Bloom Time:
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer
Blooms repeatedly

Foliage:
Herbaceous

Other details:
Requires consistently moist soil; do not let dry out between waterings
This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:
5.6 to 6.0 (acidic)
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:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; direct sow after last frost

Seed Collecting:
Bag seedheads to capture ripening seed
Allow unblemished fruit to ripen; clean and dry seeds
Properly cleaned, seed can be successfully stored

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By Azalea
Thumbnail #1 of Stylophorum diphyllum by Azalea

By bootandall
Thumbnail #2 of Stylophorum diphyllum by bootandall

By Esther_z6
Thumbnail #3 of Stylophorum diphyllum by Esther_z6

By esw
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By hart
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By lupinelover
Thumbnail #6 of Stylophorum diphyllum by lupinelover

By jnn
Thumbnail #7 of Stylophorum diphyllum by jnn

There are a total of 30 photos.
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Profile:

14 positives
4 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive plant_it On May 25, 2013, plant_it from Valparaiso, IN wrote:

This plant brightens up our woods every spring. It's native to Illinois and Indiana (among other states). Considered uncommon in Illinois, it's found in just a handful of counties. Found in about half the counties in Indiana. "This species is found in high quality woodlands; it is one of the woodland wildflowers that is threatened by the invasion of Alliaria petiolata (Garlic Mustard)."

distribution info: http://plants.usda.gov/java/profile?symbol=STDI3

Positive bresendes On May 28, 2012, bresendes from Marlborough, MA wrote:

I bought this plant about 4 years ago from my local plant society plant sale and it has done wonderfully in my shade garden which is located in the back yard by the tree line. Usually it grows all summer long and flowers throughout the summer, but this year I noticed it dropped its leaves and left just the seed pods. It is only May 28, 2012. I wonder if it is due to the very hot/humid week we are having. Will see if it recovers and begins to grow/flower again this summer. It did bloom very nicely during the beginning of May. We had a mild winter and early Spring this year. The plant has multiplied since I planted it. A few seedlings have sprouted here and there, but not too many. Overall I enjoy this plant. It is very pretty.

Positive Gabrielle On Jul 19, 2011, Gabrielle from (Zone 5a) wrote:

Nice flower, but does self-seed a bit too freely. Blooms April-June in my garden.

Positive mrsjames2002 On Apr 3, 2011, mrsjames2002 from Weston, WV (Zone 6a) wrote:

This glorious plant was growing at my homeplace when my parents bought the house in 1952, the year before I was born. I do know the house was built in 1928. After my mother passed away and the house was to be sold, I dug it up and took it to my house and grew it for 7 more years. When I moved I dug it up again and planted it where I live now. Everytime I see it, I am reminded of my old homeplace and it brings back such good memories. I have had wonderful luck and it has never been a problem. At my homeplace it was in the shade along the side of the house and was watered from the rain coming off our tin roof.

Positive AuburnR On Jun 30, 2010, AuburnR from Gaithersburg, MD wrote:

I started with one wood poppy in very good soil, partial sun, zone 6-7. It has self-seeded with abandon (a seed pod has many many seeds in it) and I find babies all over the garden. I learned to pinch off the seed heads before they could open, when I have time and can find the seed heads. The plants flower wonderfully in the spring and sporadically later, although I'm going to try deadheading more to see if they will flower more. If they would flower during the July boring season, that would be just super. They are very strong big plants in my yard and have not been touched by our voracious deer, which is a huge plus for me. When transplanted they need lots of water at first but have been hardy afterwards. Mine have never wilted out or gone dormant in the Washington, DC area's heat and humidity nor when it's very dry. For any bare spot with decent soil, they are great.

Neutral bloomhardy On Jun 21, 2010, bloomhardy from Mcminnville, OR wrote:

I planted three plants in a semi-shaded area at least 5 years ago. They are a welcome bright spot in spring and look beautiful. By mid-June the bloom has slowed and the leaves are looking tired, so I cut them back nearly to the ground. They rebound and bloom again, though less prolifically. In the heat of summer they die back and I don't see them again until spring. I have had zero reseeding, which is good, because I don't appreciate garden thugs.
The neutral rating is from the periods of recovery when it is not as attractive, and the mild itching if I allow the sap to get on my bare skin when shearing back.

Positive yotedog On Jan 12, 2010, yotedog from Raleigh, NC wrote:

One of my absolute favorite plants over the years. Such a cheerful, happy bloom, with almost no care. Several sources note that it may go dormant during hot, dry weather, but will return in the spring. So don't give up on it! Mine is in dry shade, does not self-seed readily, presumably due to the dryness, but does return and bloom dependably.

Positive EffieH On May 29, 2009, EffieH from Amston, CT (Zone 6b) wrote:

My husband & I found some of these growing wild and transplanted a few to our yard in Eastern Connecticut about 15 years ago -- we put them under an apple tree near an old stone wall -- over the years they have very gradually filled in the area under the apple tree and are now starting to spread down the yard along the wall -- they are just gorgeous in bloom, and once the flowers are gone they have attractive seed pods and the foilage is very attractive, too. We just love them. They bloom at the same time as a lovely pink azalea that is near them and the yellow and pink colors are just gorgeous. I just missed getting a photo of them in bloom -- I'll see if I can get a good one of the foilage and seed pods.

Positive hart On Apr 25, 2009, hart from Shenandoah Valley, VA wrote:

What a pretty plant - the bright yellow flowers and light green foliage are gorgeous. It looks like a giant buttercup and right now - late April - it's covered in blooms every day.

This plant is apparently juglone tolerant - it's thriving in fairly dry shade under a black walnut tree in my yard.

Neutral smallfriar On Mar 14, 2009, smallfriar from Fort Worth, TX wrote:

I brought this home to north Texas from a northern Alabama plant sale. I have it in a well-shaded, compost-enriched area, and have really babied it. It survived one Texas summer, and so far, a Texas winter, and has emerged with new growth. Hoping for the best, but knowing it's not in its proper habitat.

Neutral enya_34 On May 14, 2008, enya_34 from Madison, WI wrote:

I have it in dry shade on a slope under oaks. It does very well without any supplemental watering. It does self seeds but does not seem to be invasive.

Positive laurawege On May 12, 2008, laurawege from Wayland, MA (Zone 6a) wrote:

I have had this plant growing in m shade garden right next to the foundation of my house and it has thrived for at least 10 years . I never water this garden and give it no special treatment . My sister (oceangirl) gave me a little seedling many years ago . I have passed it along to a few people ( I m kind of particular about who I share "special" plant with ) It's bright yellow flowers are a welcome sight in spring and I am excited to read in the previous comment that you can dead head for more blooms!

Positive Lady_fern On Jun 20, 2007, Lady_fern from Jeffersonville, IN (Zone 6a) wrote:

Plant this where you can easily get to it so you can deadhead it. It blooms and blooms if you keep it deadheaded. It is one of the few plants that actually thrives under my pine tree! Very attractive little plant.

Positive Aridov On May 5, 2006, Aridov from Des Moines, IA (Zone 5b) wrote:

I have grown this plant in Des Moines, Iowa (zone 5A) on the top of an exposed west-facing slope in the almost-full-shade of a large maple tree. It is interplanted with various hostas. Not only does it thrive, but it is almost invasive. While it self-seeds readily, any unwanted plants are easily pulled up. I've been able to offer starts to many friends as well, so I know it transplants well. It has survived drought, as well as both dry and wet years with minimal watering. Its bold foliage and brilliant yellow flowers provide a great textural contrast for hostas.

Positive DiOhio On Apr 27, 2004, DiOhio from Corning, OH (Zone 6a) wrote:

This plant is a native wildflower of my moist woods here in SE Ohio. I have found it growing in 4 different areas, on rocky slopes or ravine bottoms. Last year I scattered seed in my yard and this year I have at least a hundred new plants. It seems to multiply faster in my yard than it does in the wild. It seems to thrives on all-spring sun but likes dappld shade in the summer. It is a bright addition to the gardens.

Positive Toxicodendron On Jul 2, 2003, Toxicodendron from Piedmont, MO (Zone 6a) wrote:

This is a native wildflower in our region, growing on shaded moist slopes. Beware of placing it in flowerbeds; it volunteers from seed prolifically and gets quite large if it is in good soil. I cut off the flowering stems after blooms fade, and the plants send up more flowers as long as I keep them watered.

Positive maryv On Jun 4, 2003, maryv from Columbia, MD wrote:

I live in zone 7 with lots of shade. Planted 2 wood poppies 2 years ago. They have self seeded and this year they looked like blooming bouquets. I have shared them with friends. They do well in shade and with a little sunlight seem to grow more vigorously. Heavy bloom in early spring and intermittently throughout the summer, keeps foilage until frost.

Neutral Crimson On Feb 3, 2003, Crimson from Clarksville, TN (Zone 6b) wrote:

It's a pretty flower but not terribly hardy... I have it in a moist area/full shade and it's slowly going down hill. (zone 4)

Regional...

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

Rogers, Arkansas
Sacramento, California
Amston, Connecticut
Greenwich, Connecticut
Stamford, Connecticut
Wethersfield, Connecticut
Wilmington, Delaware
Zephyrhills, Florida
Decatur, Georgia
Evanston, Illinois
Naperville, Illinois
Plainfield, Illinois
Saint Joseph, Illinois
Washington, Illinois
Bremen, Indiana
Jeffersonville, Indiana
Logansport, Indiana
Terre Haute, Indiana
Valparaiso, Indiana
Des Moines, Iowa
Shawnee Mission, Kansas
Barbourville, Kentucky
La Grange, Kentucky
Lexington, Kentucky
Louisville, Kentucky
New Orleans, Louisiana
Durham, Maine
Columbia, Maryland
Cumberland, Maryland
Mount Airy, Maryland
Takoma Park, Maryland (2 reports)
Halifax, Massachusetts
Haydenville, Massachusetts
Marlborough, Massachusetts
Wayland, Massachusetts
Ann Arbor, Michigan
Bellaire, Michigan
Dearborn Heights, Michigan
Galesburg, Michigan
Pinconning, Michigan
Hopkins, Minnesota
Minneapolis, Minnesota
Olive Branch, Mississippi
Elsberry, Missouri
Goodman, Missouri
Piedmont, Missouri
Washington, Missouri
Frenchtown, New Jersey
Montclair, New Jersey
Whiting, New Jersey
Leeds, New York
Ogdensburg, New York
Sag Harbor, New York
Salt Point, New York
Syracuse, New York
Boone, North Carolina
Burlington, North Carolina
Chapel Hill, North Carolina
Elizabeth City, North Carolina
Raleigh, North Carolina
Winston Salem, North Carolina
Glouster, Ohio
Grove City, Ohio
South Point, Ohio
Macminnville, Oregon
Portland, Oregon
Clearfield, Pennsylvania
Elkins Park, Pennsylvania
Lititz, Pennsylvania
Port Matilda, Pennsylvania
Quakertown, Pennsylvania
Spring Grove, Pennsylvania
Wilkes Barre, Pennsylvania
Conway, South Carolina
Seneca, South Carolina
Christiana, Tennessee
Clarksville, Tennessee
Knoxville, Tennessee
Austin, Texas
Fort Worth, Texas
Falls Church, Virginia
Fort Valley, Virginia
Lexington, Virginia
Richmond, Virginia
Maple Valley, Washington
Wallace, West Virginia
Weston, West Virginia
Madison, Wisconsin



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