Geranium palustre
Geranium palustre · Geraniaceae
The gardener's calendar
Ideal time to plant geranium palustre: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- Marsh Geranium
- Family
- Geraniaceae
- Type
- Perennial herb
- Foliage
- Deciduous
- Flowering
- June to August
- Mature height
- 40 to 60 cm
- Hardiness
- Very hardy (down to -15°C)
- Origin
- Europe, wet and marshy areas
Care
Watering
Marsh geranium enjoys constantly moist soil but not waterlogged conditions. Water regularly during the growing season, especially in summer during dry spells. In winter, reduce watering while maintaining some moisture. This plant tolerates marshy areas well and benefits from consistently cool soil.
Light Exposure
Place marsh geranium in partial shade or light shade for optimal flowering. It also tolerates direct sun in temperate climates, but prefers protection from very hot afternoons. Partial shade encourages longer-lasting blooms.
Soil
This plant thrives in moist, organic-rich soils that are slightly acidic to neutral. Amend with compost or peat to maintain moisture naturally. Avoid overly dry or compacted soils.
Pruning and Maintenance
Cut back stems lightly after flowering to encourage a second flush of blooms. In late autumn, remove dried aerial parts. Spring cleanup helps eliminate debris and promotes vigorous regrowth.
Fertilizer
A light application of balanced fertilizer in spring is enough to support growth. A mulch of well-decomposed compost around the base gradually enriches the soil. Avoid over-feeding, which would stimulate foliage at the expense of flowers.
Diseases and Pests
Marsh geranium is generally robust and not prone to diseases. Powdery mildew may appear with poor air circulation; improve airflow through proper pruning. Watch for slugs in moist environments and intervene if necessary.
Did you know?
Marsh geranium is a spring plant of great ecological value: its pink-violet flowers attract wild bees and butterflies, and its roots help stabilize the banks of natural wetland areas. Its Latin name 'palustre' literally means 'of marshes,' reflecting its natural habitat preference in European aquatic ecosystems.
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.
Add this plant to my garden →Plants from the same family
- Meadow geraniumGeranium pratense
- Bloody Crane's-billGeranium sanguineum
- Rock crane's-billGeranium macrorrhizum
- French crane's-billGeranium endressii
- Purple-vein geraniumGeranium wallichianum
- Himalayan crane's-billGeranium himalayense
Tips generated and checked by Viridia — adapt them to your local climate.