Scarlet pimpernel
Lysimachia arvensis · Primulaceae
The gardener's calendar
Ideal time to plant scarlet pimpernel: 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
- Adult size
- 20 to 40 cm in height
- Growth
- Fast
- Hardiness
- Very hardy (down to -15°C)
- Origin
- Eurasia
- Soil type
- Well-drained soils, tolerant of acidity
Care
Watering
Scarlet pimpernel appreciates soil kept moderately moist during the growing period, especially during flowering. Water regularly in summer, particularly if conditions are dry. In winter, reduce watering as the plant enters dormancy.
Light exposure
This herbaceous plant prefers a position in full sun to partial shade. It adapts well to open areas but also tolerates partially shaded spots. For optimal flowering, choose a well-lit site receiving at least 4 to 5 hours of sunlight daily.
Soil and planting
Scarlet pimpernel is not demanding regarding soil quality. It prefers well-drained soil and can tolerate poor or slightly acidic soils. Avoid constantly waterlogged environments that promote root rot.
Pruning and maintenance
Remove faded flowers regularly to encourage prolonged blooming. In late autumn, cut the plant down to ground level to tidy up and prepare for spring regrowth. No drastic pruning is necessary during the growing season.
Fertilizing
A moderate application of balanced fertilizer in spring is sufficient to support growth. A second light application in early summer can promote generous flowering. Avoid excess nitrogen, which would stimulate foliage at the expense of flowers.
Diseases and pests
Scarlet pimpernel is generally robust and rarely affected by pests. Watch for powdery mildew in case of stagnant humidity or poor ventilation. Slugs may occasionally damage young foliage in moist conditions.
Did you know?
Scarlet pimpernel was once used in European folk medicine as a remedy for various ailments. Its Latin name Lysimachia is derived from King Lysimachus of Thrace, to whom the use of this soothing plant was attributed for calming conflicts between farm animals.
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
- Dotted loosestrifeLysimachia punctata
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- Eastern sowbreadCyclamen coum
- SowbreadCyclamen hederifolium
- Yellow loosestrifeLysimachia vulgaris
- CowslipPrimula veris
Tips generated and checked by Viridia — adapt them to your local climate.