Great spearwort
Ranunculus lingua · Ranunculaceae
The gardener's calendar
Ideal time to plant great spearwort: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous
- Blooming
- May to July
- Adult size
- 60 to 120 cm in height
- Growth
- Fast
- Hardiness
- Very hardy (down to -15°C)
- Origin
- Europe, temperate Asia
- Soil type
- Moist to marshy
- Natural habitat
- Wet areas, marshes, riverbanks
Care
Watering
The buttercup-tongue is a plant of humid zones that requires constantly wet soil. Keep the substrate moist in all seasons, without creating excessive waterlogging. In pots, water regularly to never let the soil dry out completely. This species thrives near a water feature or in naturally moist garden soil.
Light Exposure
Favor a sunny to partially shaded position for generous flowering. The plant tolerates full sun well, especially in temperate climates, but appreciates some afternoon shade in very hot regions. Good light promotes robustness and abundant flowering.
Soil
This species requires rich, moist, and well-structured soil, ideally enriched with organic matter. Amend the soil with compost or coarse potting soil to improve water retention. Moderate drainage is acceptable: unlike other plants, it accepts temporarily waterlogged soils.
Fertilizer
Apply a balanced or slightly nitrogen-rich fertilizer in spring to support growth and flowering. A single application in May is generally sufficient for the entire season. Avoid excess nitrogen fertilizer as it would favor foliage at the expense of flowers.
Pruning and Maintenance
No pruning is strictly necessary. Simply remove spent flowers to prolong blooming. In autumn, after the foliage dies back, you can cut the stems to ground level. In spring, clear away plant debris to encourage new growth.
Diseases and Pests
This species is generally robust. In very humid and stagnant conditions, watch for rust or root rot: improve soil aeration in that case. Aphids can occasionally colonize young shoots; remove them by rinsing with water or biological intervention.
Did you know?
The buttercup-tongue gets its common name from the elongated shape of its leaves, which resemble little tongues. Historically, several buttercup species were used as markers of marshy areas in Europe, as their presence indicated moist soils suitable for certain crops. This aquatic or semi-aquatic plant has long fascinated botanists for its ability to thrive in environments where few other herbaceous plants survive.
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.