Robert Geranium
Geranium robertianum
- Native to:
- Albania, Algeria, Austria, Azores, Baltic States, Belarus, Belgium, Bulgaria, Canada, Canary Is., China, Corse, Cyprus, Czechia-Slovakia, Denmark, Ethiopia, Finland, France, Germany, Greece, Hungary, India, Iran, Ireland, Italy, Kazakhstan, Kirgizstan, Kriti, Krym, Labrador, Lebanon-Syria, Libya, Madeira, Morocco, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Portugal, Prince Edward I., Romania, Russia, Sardegna, Saudi Arabia, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Türkiye-in-Europe, Turkmenistan, Ukraine, Uzbekistan, Yemen
Epiceavert
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Geraniaceae
- Genus:
- Geranium
- Species:
- Geranium robertianum
- USDA Symbol:
- GERO
Growth Characteristics
- Life Cycle:
- Annual | Biennial
- Growth Habit:
- Forb/herb
- Height:
- 50 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- apr,may,jun,jul,aug,sep,oct
- Bloom Colors:
- pink, white
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- bees, small birds
- Deer Resistant:
- Yes
- Fragrant:
- Yes
- Fall Color:
- red
Soil Requirements
- Soil Type:
- moist, well-drained, humus-rich soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Thrives in shaded, woodland areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Germination Time:
- 14–60 days
- Notes:
- Germination can be erratic. Fresh seed germinates more readily; light may improve germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Notes: Light required for germination; do not cover seed.
Source: Claude AI