Marsh Valerian

Valeriana dioica

Native to:
Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, Czechia-Slovakia, Denmark, France, Germany, Hungary, Italy, Labrador, Netherlands, Norway, NW. Balkan Pen., Poland, Portugal, Romania, Russia, Spain, Sweden, Switzerland, Türkiye, Türkiye-in-Europe, Ukraine, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Caprifoliaceae
Genus:
Valeriana
Species:
Valeriana dioica
USDA Symbol:
VADI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
40 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
may,jun,jul
Bloom Colors:
white, pink

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes

Soil Requirements

Soil Type:
moist, fertile, well-drained loam
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Prefers calcareous soils in marshy areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–42 days
Notes:
Seeds require light for germination; surface sow and do not cover.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: Claude AI