Celandine Poppy (Stylophorum diphyllum)

Common names:
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Give a thumbs up Wood Poppy
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General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Partial Shade to Full Shade
Water Preferences: Wet Mesic
Mesic
Dry Mesic
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Plant Height: 12-15 inches
Plant Spread: 12 inches
Leaves: Unusual foliage color
Fruit: Showy
Fruiting Time: Spring
Summer
Flowers: Showy
Flower Color: Orange
Yellow
Bloom Size: 1"-2"
2"-3"
Flower Time: Late winter or early spring
Spring
Late spring or early summer
Uses: Will Naturalize
Toxicity: Leaves are poisonous
Roots are poisonous
Fruit is poisonous
Other: Bitter-tasting with orange sap
Propagation: Seeds: Stratify seeds: Needs a warm period, then a cold period, then a cool period for germination.
Sow in situ
Other info: Seed will die if it dries out.
Propagation: Other methods: Cuttings: Root
Pollinators: Self
Flies
Bees
Containers: Not suitable for containers

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The All Things Plants Top 25 List of Shade Garden PlantsThe All Things Plants Top 25 List of Shade Garden Plants
By dave on May 3, 2014

Let's open Shade Gardens week with a list of the most active entries in our database. Among the thousands of plants that want full or mostly shade, which ones have the most pictures, comments and other details added? Let's find out!

(Full article15 comments)
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Comments:
Posted by foraygardengirl (Minnesota - Zone 4a) on May 6, 2016 7:19 AM

My celandine poppies are in a very dry area, under a huge double-trunked cedar tree. They seem to be happy there and self-seed a bit. They do not go dormant for me and will bloom sporadically through the season. The foliage always looks nice.

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Posted by SongofJoy (Clarksville, TN - Zone 6b) on Jan 15, 2012 9:47 AM

Celandine Poppy is a perennial with bluish-green lobed leaves; the plants form 1&1/2-foot clumps. From March to May, clusters of bright yellow, 2-inch buttercup-like flowers appear and are followed by nodding hairy green pods. Under dry conditions, the plant may go dormant in midsummer, otherwise it may flower on and off into fall. Celandine Poppy is a good wildflower for moist, rich, lightly wooded areas. It will self-sow and multiply when happy. (Sunlight Gardens)

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Posted by sherrilosee (Bloomington, IN - Zone 6a) on Aug 18, 2012 8:05 PM

They say this plant goes dormant in summer, but mine does not. In fact, it sent up blooms sporadically through June!

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Posted by SCButtercup (Simpsonville SC - Zone 7b) on Aug 28, 2014 4:34 AM

In hot midsummer this plant dies off in my garden, even though it starts off early spring with a bang and is sheltered in a shaded, somewhat moist area. Probably it is not getting enough water when it's hot, but it comes back every spring, so I'm happy to have it. I may rig a watering system for this bed.

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Posted by sallyg (central Maryland) on Aug 5, 2019 8:16 AM

I've grown this for some years in full shade with tree root competition, no special care. Lovely foliage and spring bloom. Foliage persists into summer though it may become ratty, or go dormant. Mine still has leaves now despite some very hot weather and a dry July. Slowly increasing by reseeding.

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