Hemp Broomrape

Orobanche ramosa

Native to:
Albania, Algeria, Austria, Baleares, Bulgaria, Canary Is., Corse, Djibouti, East Aegean Is., Egypt, Eritrea, Ethiopia, France, Hungary, Italy, Kazakhstan, Krym, Lebanon-Syria, Libya, Madeira, Mauritania, Morocco, NW. Balkan Pen., Oman, Portugal, Romania, Russia, Sardegna, Saudi Arabia, Sicilia, Sinai, Socotra, Somalia, Spain, Sudan-South Sudan, Switzerland, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Ukraine, Yemen

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Orobanchaceae
Genus:
Orobanche
Species:
Orobanche ramosa
USDA Symbol:
ORRA

Growth Characteristics

Life Cycle:
Annual | Biennial | Perennial
Growth Habit:
Forb/herb
Height:
40 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul,aug,sep
Bloom Colors:
yellow, white, blue, violet

Garden & Ecology Notes

Deer Resistant:
Yes

Soil Requirements

Soil Type:
poor, sandy, well-drained soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
parasitic plant, often found in disturbed areas

Propagation & Germination

Notes:
Parasitic plant; seeds require chemical signals from host plant roots to germinate. Cannot germinate without host presence.

The above propagation data sourced from Claude AI