Roundfruit Rush
Juncus compressus
- Native to:
- Afghanistan, Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, China, Corse, Cyprus, Czechia-Slovakia, Denmark, East Aegean Is., Finland, France, Germany, Great Britain, Greece, Hungary, India, Iran, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krym, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Portugal, Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine, Uzbekistan
Ivar Leidus






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Juncaceae
- Genus:
- Juncus
- Species:
- Juncus compressus
- USDA Symbol:
- JUCO
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 80 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- greenish, brown
Wildlife Benefits
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
Soil Requirements
- Soil Type:
- moist, nutrient-rich clay or loam
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetlands and marshy areas.
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate best after cold stratification; surface sow on moist soil and keep consistently moist.