Stylophorum–commonly called Celandine poppy–is woodland perennial that produces clusters of saucer-shaped, four-petaled , poppylike flowers in shades of yellow or orange.
Stylophorum diphyllum is an 18-inch species native to the eastern United States. The deeply lobed, scallop -margined leaves form 12 inch wide mounds. The flowers are 1- to 2-inches wide and appear spring to summer.
Stylophorum is best grown in partial to full shade in humus-rich, moist soil. Where Stylophorum is happy it will self sow.
Stylophorum is a genus of 3 species of herbaceous perennials native to woodland in eastern North America and eastern Asia.
Get to Know Stylophorum
- Plant type: Perennial
- Growing zones and range: Zones 5-8
- Hardiness: Hardy to Zone 5
- Height and width: 12 inches (30cm) tall and wide
- Foliage: Deeply lobed 8 to 12 inch leaves with scallopted margins
- Flowers: Suacer-shaped, poppy-like, four-petaled, yellow or orange blossoms borne in terminal umbels
- Bloom time: Spring and summer
- Uses: Shade border, rock garden
- Common name: Flaming poppy, Celandine poppy
- Botanical name: Stylophorum
- Family name: Papaveraceae
- Origin: Woodlands in eastern North America and eastern Asia.

Where to Plant Stylophorum
- Plant Stylophorum in partial to full shade; plants will survive in full sun but can becom scorchted.
- Grow Stylophorum in average to humus-rich soil.
When to Plant Stylophorum
- Set container grown Stylophorum outdoors in spring or autumn.
Planting and Spacing Stylophorum
- Space Stylophorum 12 inches (30cm) apart.
How to Water and Feed Stylophorum
- Keep the soil evenly moist for Stylophorum.
- Fertilize Stylophorum with an all-purpose organic fertilizer in spring.
Stylophorum Care
- Stylophorum will self-sow and can become weedy it not watched.
Stylophorum Pests and Diseases
- Stylophorum may be attacked by slugs and snails.
Stylophorum Propagation
- Sow seed in containers in a cold frame in autumn.
- Divide Stylophorum in spring; can be slow to re-establish.
Stylophorum Varieties to Grow
- Stylophorum diphyllum, celandine poppy, flaming poppy. Perennial grows to 12 inches tall and wide; downy rosette-forming; deeply incised mid-green leaves; bright golden yellow flowr to 1 inch across; blooms in summer.