Blackspot Hornpoppy
Glaucium corniculatum
- Native to:
- Algeria, Australia, Baleares, Bulgaria, Canary Is., Corse, Cyprus, Egypt, France, Greece, Hungary, Iran, Iraq, Italy, Kazakhstan, Kirgizstan, Kriti, Krym, Kuwait, Lebanon-Syria, Libya, Madeira, Morocco, North Caucasus, NW. Balkan Pen., Palestine, Portugal, Romania, Russia, Sardegna, Saudi Arabia, Sicilia, Sinai, Spain, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine
User User:Alberto Salguero (es.wikipedia.org) on es.wikipedia (es.wikipedia.org)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Papaveraceae
- Genus:
- Glaucium
- Species:
- Glaucium corniculatum
- USDA Symbol:
- GLCO3
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 50 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- red, orange, yellow
Garden & Ecology Notes
- Wildlife Value:
- bees
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
Soil Requirements
- Soil Type:
- dry, sandy, well-drained soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers open, sunny habitats
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 14–30 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate best with light exposure and cool temperatures. Often erratic germination.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Sow @ 20C. If no germination in 3 months, try 4C 1-2 months, then 20C again.