Stylophorum Species, Chinese Celandine Poppy

Stylophorumlasiocarpum

Family
Papaveraceae (pa-pav-er-AY-see-ee)
Genus
Stylophorum (sty-loh-FOR-um)
Species
lasiocarpum (las-ee-oh-KAR-pum)
Synonym
Chelidonium lasiocarpum
Hylomecon lasiocarpum
Sun Exposure
Partial to Full Shade
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
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)
Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
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
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
Regional

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

Richmond, California

Baltimore, Maryland

Painted Post, New York

Bellingham, Washington

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Gardener's Notes:

1
positive
0
neutral
0
negative
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J
Baltimore, MD (Zone 7a) | May 2010 | positive

Nice texture and color in the woodland garden in late spring/early summer. Much less invasive than its American cousin - other noted diff...Read More

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