Ranunculus trichophyllus
Ranunculus trichophyllus · Ranunculaceae
The gardener's calendar
Ideal time to plant ranunculus trichophyllus: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Ranunculaceae
- Form
- Submerged aquatic plant
- Foliage
- Deciduous (disappears in winter)
- Flowering
- Spring to summer (May-July)
- Hardiness
- Very hardy (down to -15°C)
- Origin
- Europe, temperate Asia
- Natural habitat
- Watercourses, ditches and calm fresh waters
Care
Submersion and water flow
This aquatic plant must remain completely submerged in water. It thrives in slightly flowing or stagnant environments, with a water depth of 30 to 100 cm depending on the variety. Regular flow helps provide nutrients and prevents excessive silting. Avoid water that's too turbulent, as it could detach young shoots.
Light and position
Water crowfoot prefers a sunny to partially shaded location for good growth and abundant flowering. It tolerates partial shade on banks well, but in very deep water, light can be limiting. Place it in areas where sunlight reaches the water for at least 4 to 5 hours per day.
Substrate and bottom
This plant roots in silts, loams or rich organic substrates at the water's bottom. Adding fertile soil or peat at the start promotes root anchoring. It tolerates the natural muddy bottoms of water features and ditches well.
Nutritional input
In its natural environment, the plant benefits from nutrients contained in the water and substrate. In a constructed pond, a lightly dosed liquid aquatic fertilizer in spring can stimulate growth. Prefer moderate fertilization to avoid excessive algal proliferation.
Control and maintenance
This plant grows rapidly and can become invasive. Regular removal of excess stems prevents the waterway from becoming choked. Cut off dead or yellowed portions after winter. Avoid drastic pruning during active growth periods.
Health and pests
Water crowfoot is generally very robust and rarely susceptible to disease. Excessive silting or stagnant water can promote root rot. Ensure good water circulation and regularly clean the substrate to prevent accumulation of organic debris.
Did you know?
Water crowfoot owes its name to its finely divided leaves, which resemble delicate hair. Once very common throughout Europe, it played a crucial role in the natural purification of watercourses and agricultural ditches, making it an emblematic species of temperate aquatic ecosystems before the agricultural intensification of the twentieth century.
Where to buy it
Best planted in spring or autumn, away from frost and heatwaves. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September, October.
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Tips generated and checked by Viridia — adapt them to your local climate.