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PlantFiles: Long-headed Poppy
Papaver dubium

 
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Family: Papaveraceae (pa-pav-er-AY-see-ee) (Info)
Genus: Papaver (puh-PAY-ver) (Info)
Species: dubium (DOO-bee-um) (Info)

One vendor has this plant for sale.

2 members have or want this plant for trade.

Category:
Alpines and Rock Gardens
Annuals

Height:
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)

Hardiness:
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Not Applicable

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Coral/Apricot
Orange
Red-Orange

Bloom Time:
Mid Spring

Foliage:
Herbaceous

Other details:
May be a noxious weed or invasive
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

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)
7.9 to 8.5 (alkaline)

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored

By kennedyh
Thumbnail #1 of Papaver dubium by kennedyh

By Lophophora
Thumbnail #2 of Papaver dubium by Lophophora

By Lophophora
Thumbnail #3 of Papaver dubium by Lophophora

By Lophophora
Thumbnail #4 of Papaver dubium by Lophophora

By Lophophora
Thumbnail #5 of Papaver dubium by Lophophora

By Lophophora
Thumbnail #6 of Papaver dubium by Lophophora

Profile:

No positives
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorComment
Neutral cowgirl2 On Oct 2, 2006, cowgirl2 from Calgary
() wrote:

This is the first year growing this plant. It took me some time to identify it as P. dubium. It's a crowded field. My seed was collected from an empty lot.

I still have one question regarding identification based on latex colour. Grey-Wilson in his book on Poppies says that its leaves has white latex when cut. When I cut these leaves and flower stem, I get yellow latex.

If anyone else has a plant still growing can they check the latex colour.

Neutral Lophophora On Jul 9, 2002, Lophophora from Tokyo
(Japan) wrote:

I love this little Asian poppy, but it might not be for everyone.

Pros: Will happily self-sow in the worst of soils.
Cons: Will happily self-sow in the worst of soils.

;-)

Every vacant lot, cracked sidewalk, and unattended pot in Tokyo has this little cutie blooming in May.

This poppy may be banned in some parts of the world, including parts of the US. It is considered a pest by commercial poppy seed growers (somniferum and orientale) in Europe and Africa. From just twenty plants, I harvested about 200 grams of seed this year. So by all means, consider your own local ecosystems before trying this one...



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