Photo: Wolfgang JauchCC BY 4.0via iNaturalistresized / cropped
Marsh Valerian Plant Care
Valeriana dioica L.
Updated · Sources · How we source care data
This plant's most distinctive visual feature is its delicate, fern-like leaves that form a rosette at the base. Valeriana dioica is native to Europe and Western Asia, making it a sought-after addition to plant collections for its unique appearance and medicinal properties.
Every 3–5 days
Partial shade to full sun
50–75°F
40–70%
At a glance
How do you care for Marsh Valerian?
Water Marsh Valerian every 3–5 days, letting the top layer of soil dry out between waterings, and give it partial shade to full sun. It prefers temperatures of 50–75°F (10–24°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Marsh Valerian Native To?
- Albania
- Austria
- Belarus
- Belgium
- Bosnia and Herzegovina
- Bulgaria
- Canada
- Croatia
- Cyprus
- Czechia
- Denmark
- Estonia
- Finland
- France
- Germany
- Greece
- Hungary
- Iceland
- Ireland
- Italy
- Latvia
- Lithuania
- Luxembourg
- Malta
- Mexico
- Moldova
- Montenegro
- North Macedonia
- Norway
- Poland
- Portugal
- Romania
- Russia
- Serbia
- Slovakia
- Slovenia
- Spain
- Sweden
- Switzerland
- The Netherlands
- Türkiye
- Ukraine
- United Kingdom
- United States
What Is the Marsh Valerian?
Marsh Valerian (Valeriana dioica) belongs to the Caprifoliaceae family within the Valeriana genus. Marsh Valerian is native to North America, Europe and Anatolia. Marsh Valerian is also known as Fen Valerian.
Marsh Valerian displays a clumping perennial herb growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Marsh Valerian produces small fragrant white or pink flowers in clusters.
Leaf size: approximately 4 inches.
How Often Should You Water a Marsh Valerian?
Valeriana dioica requires watering every 3–5 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 3–5 days
Let soil partially dry between waterings
What Light Does the Marsh Valerian Need?
Marsh Valerian thrives in partial shade to full sun.
Light Requirement
Partial shade to full sun
What Temperature and Humidity Does the Marsh Valerian Prefer?
Valeriana dioica grows best at temperatures of 50–75°F. Marsh Valerian prefers humidity levels of 40–70%.
Temperature
50–75°F
Humidity
40–70%
What Soil Mix Works Best for a Marsh Valerian?
Moist, well-draining soil rich in organic matter. Good drainage is essential for Marsh Valerian to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Marsh Valerian?
Feed Marsh Valerian every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Marsh Valerian?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Marsh Valerian?
Marsh Valerian can be propagated through seeds, division of root ball. Similar propagation techniques also apply to starry valerian plant care, which shares the same genus.
Is the Marsh Valerian Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Marsh Valerian, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Marsh Valerian?
Marsh Valerian is susceptible to aphids, spider mites, slugs. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Marsh Valerian Need?
Marsh Valerian grows outdoors in USDA Zone 4a – 8b. It survives winters down to planting zone 4a. Marsh Valerian is native to North America, Europe and Anatolia.
Hardiness Zone
Zone 4a – 8b
Keep exploring plants
Marsh Valerian is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Valeriana genus — compare its care with other Valeriana species on PlantoScan.
Valeriana is part of the Caprifoliaceae plant family — browse all Caprifoliaceae genera and species.
Marsh Valerian thrives in bright light and direct sun — see other bright-light plants.
More Valeriana Species
Other Valeriana species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Valeriana dioica L., family Caprifoliaceae (first published in Sp. Pl. : 31 (1753)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Marsh Valerian, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: Wolfgang Jauch, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 4a – 8b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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