Parry's Rush
Juncus parryi
- Native to:
- Canada, Mexico, United States
iNaturalist: © matsonburger (iNaturalist #230627122)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Juncaceae
- Genus:
- Juncus
- Species:
- Juncus parryi
- USDA Symbol:
- JUPA
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- greenish-brown
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
Soil Requirements
- Soil Type:
- rocky, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- commonly found in alpine and subalpine meadows
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate readily after cold stratification; surface sow on moist soil.
Pre-treatment: Divisions: placed into Vitamin B-1 solution for 15 minutes. Seed: sown into cone-tainers filled with Sunshine # 1, amended with micro-nutrients and a slow-release fertilizer. Flats covered with polyethylene bags and placed in a walk-in cooler for 5 weeks.
Establishment: No significant differences in emergence or seedling vigor were noted between 5, 10 or 16 week stratified seeds. 0 germinants were observed in control flats.
Source: npn.rngr.net