Yellowseed false pimpernel
Lindernia dubia · Linderniaceae
The gardener's calendar
Ideal time to plant yellowseed false pimpernel: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- False Pointel
- Family
- Linderniaceae
- Type
- Annual or semi-aquatic herbaceous plant
- Adult size
- 10 to 30 cm in height
- Foliage
- Deciduous, light green
- Flowering
- Summer to autumn (small mauve or white flowers)
- Origin
- Southeast Asia and North America
- Hardiness
- Not very hardy, thermophilic plant
Care
Watering
Keep the substrate constantly moist, even soggy depending on conditions. This plant thrives in aquatic or semi-marshy environments. Indoors, water regularly without letting it dry out completely between waterings.
Light exposure
Choose a bright location with a few hours of direct sun or substantial indirect light. It also tolerates partial shade. In overly dark conditions, growth slows noticeably.
Soil and substrate
Use rich, moisture-retaining potting soil enriched with organic matter. A mix containing peat or compost works perfectly. Drainage is not a priority; instead prioritize good water retention.
Fertilization
Apply balanced fertilizer every 2 to 3 weeks in spring and summer. Reduce or stop fertilizing in autumn and winter, the period of slower growth.
Pruning and pinching
Regularly pinch the tips to encourage compact, branched growth. Remove any damaged or dead parts. These light interventions maintain a harmonious shape.
Pests and diseases
Watch for collar rot if there is prolonged excess moisture. Spider mites can infest plants in dry indoor conditions. Improve ventilation and maintain moderate humidity to prevent these problems.
Did you know?
Lindernia dubia, though little known to the general public, is a fascinating semi-aquatic plant native to Asia that has adapted to many temperate countries. It is particularly appreciated by terrarium enthusiasts and aquascapers for its delicate appearance and ability to thrive between water and air, creating microecosystems that are both aquatic and terrestrial.
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.