Marsh bedstraw
Galium palustre · Rubiaceae
The gardener's calendar
Ideal time to plant marsh bedstraw: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous
- Flowering
- June to September, white or pale pink flowers
- Adult size
- 20 to 60 cm tall
- Growth
- Fast
- Hardiness
- Very hardy (down to -15°C)
- Origin
- Europe, temperate Asia
- Natural habitat
- Wetlands, marshes, streambanks
- Soil type
- Moist to very moist, tolerant
Care
Watering
Marsh bedstraw thrives in constantly moist environments. Keep the soil wet or at least very moist throughout the growing season, particularly in summer. During dry periods, water regularly to prevent the soil from drying out.
Light exposure
This plant prefers partial shade or moderate sunlight. It also tolerates shaded areas, especially in warm regions. Avoid overly intense sun exposure in Mediterranean climates.
Soil and substrate
Marsh bedstraw tolerates moist soils, even poor or acidic ones. It thrives particularly in marshy, peaty terrain or near water sources. No specific amendment is necessary if the ground is naturally cool and moist.
Pruning and maintenance
Perform light pruning in spring to remove dead stems and maintain a compact shape. Cutting back after flowering can encourage a second flush of blooms. This plant requires minimal intervention and is easy to manage.
Fertilizer
No fertilizer is generally needed, as marsh bedstraw thrives in poor soils. In very poor conditions, a light application of compost in spring will suffice.
Diseases and pests
This hardy plant is rarely affected by diseases. Powdery mildew may appear if air circulation is poor for prolonged periods. Ensure good ventilation and avoid prolonged stagnant moisture to prevent fungal issues.
Did you know?
Marsh bedstraw historically served as a dye plant in Europe, with its roots producing a red hue used in the textile industry. Its scientific name Galium comes from the Greek galion, likely referring to its ancient use. This small herbaceous plant of moist areas remains a valuable ally for naturalizing water gardens and wetland habitats while attracting pollinators.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.