Jagged Chickweed
Holosteum umbellatum
- Native to:
- Afghanistan, Albania, Algeria, Austria, Baltic States, Belarus, Belgium, Bulgaria, China, Corse, Cyprus, Czechia-Slovakia, Denmark, East Aegean Is., Ethiopia, France, Germany, Greece, Hungary, India, Iran, Iraq, Italy, Kazakhstan, Kirgizstan, Kriti, Krym, Lebanon-Syria, Morocco, Netherlands, North Caucasus, NW. Balkan Pen., Oman, Pakistan, Palestine, Poland, Portugal, Romania, Russia, Sardegna, Saudi Arabia, Sicilia, Sinai, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine, Uzbekistan
Johann Georg Sturm, Painted by Jacob Sturm (en.wikipedia.org) ; published by Kurt Stüber






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Caryophyllaceae
- Genus:
- Holosteum
- Species:
- Holosteum umbellatum
- USDA Symbol:
- HOUM
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- mar,apr,may
- Bloom Colors:
- white
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
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
- Notes:
- prefers open, sunny habitats
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–21 days
- Notes:
- Seeds germinate readily in cool conditions; winter annual that germinates in fall or early spring.
The above propagation data sourced from Claude AI