Shasta Sedge
Carex straminiformis
- Native to:
- United States
iNaturalist: © peterzika (iNaturalist #133541711)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cyperaceae
- Genus:
- Carex
- Species:
- Carex straminiformis
- USDA Symbol:
- CAST7
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
Soil Requirements
- Soil Type:
- moist, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from cold moist stratification for 30-60 days to break dormancy.
Pre-treatment: 90-120 days cold stratification
Establishment: Germination rate varies with duration of cold stratification. Longer stratification periods (120 days) can result in higher germination rates (up to 58%), but also can result in lower rates (40%). Shorter stratification (90 days) resulted in 46% germination.
Source: npn.rngr.net