Marsh Bedstraw (Galium palustre)

Photo: Tom NortonCC BY 4.0via iNaturalistresized / cropped

Marsh Bedstraw Plant Care

Galium palustre L.

Updated · Sources · How we source care data

Galium palustre, also known as marsh bedstraw, is a perennial plant with whorls of narrow, lance-shaped leaves that grow in damp habitats like marshes and wet woodlands. It is popular among plant enthusiasts for its delicate white flowers that bloom in clusters atop the foliage.

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Water

Every 3–5 days

Light

Partial to full shade

Temp

50–75°F

Humidity

60–80%

At a glance

How do you care for Marsh Bedstraw?

Water Marsh Bedstraw every 3–5 days, letting the top layer of soil dry out between waterings, and give it partial to full shade. It prefers temperatures of 50–75°F (10–24°C) and 60–80% humidity. Fertilize it every month during the growing season.

Where Is the Marsh Bedstraw Native To?

Native range45 countries

What Is the Marsh Bedstraw?

Marsh Bedstraw (Galium palustre) belongs to the Rubiaceae family within the Galium genus. Marsh Bedstraw is native to virtually every country in Europe, plus Morocco, the Azores, Turkey, Turkmenistan, Western Siberia, Greenland, eastern Canada, St. Marsh Bedstraw is also known as Fen Bedstraw.

Marsh Bedstraw displays a low-growing, spreading perennial growth habit, reaching up to 2 ft tall with a spread of approximately 1 ft. Marsh Bedstraw produces small, white, star-shaped flowers in clusters.

Leaf size: approximately 2 inches.

How Often Should You Water a Marsh Bedstraw?

Galium palustre 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 Bedstraw Need?

Marsh Bedstraw thrives in partial to full shade. Avoid placing Marsh Bedstraw in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Partial to full shade

What Temperature and Humidity Does the Marsh Bedstraw Prefer?

Galium palustre grows best at temperatures of 50–75°F. Marsh Bedstraw prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Temperature

50–75°F

Humidity

60–80%

What Soil Mix Works Best for a Marsh Bedstraw?

Moist, well-draining soil with high organic matter content. Good drainage is essential for Marsh Bedstraw to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Marsh Bedstraw?

Feed Marsh Bedstraw every month 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 month

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 Bedstraw?

Repot every 1-2 years in 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 Bedstraw?

Marsh Bedstraw can be propagated through seeds, division of roots, stem cuttings. Similar propagation techniques also apply to bermuda bedstraw plant care, which shares the same genus.

Is the Marsh Bedstraw Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Marsh Bedstraw, 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 Bedstraw?

Marsh Bedstraw is susceptible to aphids, spider mites, whiteflies. 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 Bedstraw Need?

Marsh Bedstraw grows outdoors in USDA Zone 3a – 8b. It survives winters down to planting zone 3a. Marsh Bedstraw is native to virtually every country in Europe, plus Morocco, the Azores, Turkey, Turkmenistan, Western Siberia, Greenland, eastern Canada, St.

Hardiness Zone

Zone 3a – 8b

Keep exploring plants

Marsh Bedstraw 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 Galium genus — compare its care with other Galium species on PlantoScan.

Galium is part of the Rubiaceae plant family — browse all Rubiaceae genera and species.

Marsh Bedstraw copes with lower light than most plants — browse the full list of low-light plants.

More Galium Species

Other Galium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Galium palustre L., family Rubiaceae (first published in Sp. Pl. : 105 (1753)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Marsh Bedstraw, 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: Tom Norton, CC BY 4.0, iNaturalist — original.
  • Hardiness zone: USDA Zone 3a – 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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