Fieldbriar
Rosa agrestis
- Native to:
- Albania, Algeria, Austria, Baleares, Belgium, Bulgaria, Corse, Cyprus, Czechia-Slovakia, Denmark, East Aegean Is., France, Germany, Greece, Hungary, Ireland, Italy, Kriti, Krym, Morocco, Netherlands, North Caucasus, NW. Balkan Pen., Poland, Portugal, Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Ukraine
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Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Rosaceae
- Genus:
- Rosa
- Species:
- Rosa agrestis
- USDA Symbol:
- ROAG2
Growth Characteristics
- Height:
- 200 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul
- Bloom Colors:
- white, pink
- Landscaping Shrub:
- Yes
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, bees, small mammals
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to European hedgerows and open woods
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 90–120 days
- Germination Time:
- 30–365 days
- Notes:
- Germination can be erratic and may take up to a year. Seeds benefit from cold stratification over winter.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Requires scarification. Nick or rub between sheets of sandpaper. Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard water and any seeds that remain floating. Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * soak in hot water for 24 hours to scarify; plant at 32°C for 2-3 weeks, then 4°C for 4 months