Sweet William Silene
Atocion armeria
- Native to:
- Albania, Bulgaria, Corse, France, Greece, Italy, NW. Balkan Pen., Romania, Sardegna, Switzerland, Türkiye, Türkiye-in-Europe
Johann Georg Sturm (Painter: Jacob Sturm)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Caryophyllaceae
- Genus:
- Atocion
- Species:
- Atocion armeria
- USDA Symbol:
- SIAR
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 40 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- pink, magenta, purple
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- butterflies, bees
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- well-drained, sandy or rocky soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–21 days
- Notes:
- Seeds benefit from light exposure during germination. Surface sow or barely cover.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires light / surface sow (fine seed).