Moor Rush
Juncus stygius
- Native to:
- Baltic States, Belarus, Canada, Finland, Germany, Korea, Kuril Is., Labrador, Norway, Poland, Russia, Sweden, Switzerland, United States
Ilya Filippov
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Juncaceae
- Genus:
- Juncus
- Species:
- Juncus stygius
- USDA Symbol:
- JUST
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 40 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- brown, green
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, small mammals
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- peaty, nutrient-poor, waterlogged soil
- pH:
- 4.5 - 6.5 (acidic to slightly acidic)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist to wet
- Notes:
- commonly found in bogs and fens
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–60 days
- Notes:
- Requires light for germination. Seeds should be surface sown on wet peat substrate.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI