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PlantFiles: Red Horned Poppy, Bristly Horned Poppy, Blackspot Hornpoppy
Glaucium corniculatum

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Family: Papaveraceae (pa-pav-er-AY-see-ee) (Info)
Genus: Glaucium (GLAH-see-um) (Info)
Species: corniculatum (korn-ee-ku-LAY-tum) (Info)

Synonym:Chelidonium corniculatum
Synonym:Glaucium grandiflorum
Synonym:Glaucium phoeniceum
Synonym:Glaucium rubrum

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Category:
Biennials

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

Spacing:
15-18 in. (38-45 cm)

Hardiness:
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:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Red

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Silver/Gray
Smooth-Textured

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Non-patented

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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Thumbnail #7 of Glaucium corniculatum by AnniesAnnuals

There are a total of 9 photos.
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Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Baa On Mar 29, 2002, Baa wrote:

Biennial plant from Europe and West Asia.

Has glaucous, slightly hairy, slivery-grey, pinnately lobed leaves. Bears cup shaped, red or orange, silky looking flowers often with a dark spot at the base of each petal.

Flowers July-September

Likes a very well drained, poorish soil in full sun.

Regional...

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

Richmond, California
San Jose, California
Sebastopol, California
Denver, Colorado
Raleigh, North Carolina



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