Silverweed Cinquefoil

Argentina anserina

Native to:
Afghanistan, Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Czechia-Slovakia, Denmark, Finland, Føroyar, France, Germany, Greenland, Hungary, Iceland, India, Iran, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krym, Labrador, Lebanon-Syria, Mexico, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Portugal, Prince Edward I., Romania, Russia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Türkiye, Ukraine, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rosaceae
Genus:
Argentina
Species:
Argentina anserina
USDA Symbol:
ARAN7

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
30 cm
Light Requirements:
Shade
Drought Tolerance:
Low
Bloom Months:
may,jun,jul,aug,sep
Bloom Colors:
yellow
Ground Cover:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Dark marbled carpet (Dysstroma citrata), Epidemia dorcas, Epidemia helloides

Garden & Ecology Notes

Wildlife Value:
birds, butterflies, bees
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
moist, sandy to loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
commonly found in coastal and riparian zones

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds require light for germination. Surface sow or barely cover. Consistent moisture is essential.

The above propagation data sourced from Claude AI

Pre-treatment: None required

Establishment: Collection is typically difficult due to the plant's prostrate, stoloniferous form. Collection occurs early August to mid September when the yellow flower has turned brown and the achene is wrinkled and corky. One collection hour/person will yield an average 34 grams clean seed. Very small lots can be hand collected into paper bags.

Source: npn.rngr.net