Gooseneck Yellow Loosestrife
Lysimachia clethroides
- Native to:
- China, Hainan, Japan, Korea, Laos, Russia, Taiwan, Vietnam
Dominicus Johannes Bergsma
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Primulaceae
- Genus:
- Lysimachia
- Species:
- Lysimachia clethroides
- USDA Symbol:
- LYCL2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- white
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Keystone Species Ranking
- Pollen Specialist Bee Keystone:
- ★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)
Reported Fauna Sightings
Bees: Brown-belted bumble (Bombus griseocollis), Common eastern (Bombus impatiens)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Deer Resistant:
- Yes
- Fall Color:
- yellow
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Prefers moist, fertile soils in its native range
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination; surface sow and do not cover.
The above propagation data sourced from Claude AI