Euphrasia wettsteinii
Euphrasia wettsteinii · Orobanchaceae
The gardener's calendar
Ideal time to plant euphrasia wettsteinii: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Orobanchaceae
- Form
- Annual or biennial herb
- Flowering
- Late summer to autumn (August-October)
- Mature height
- 15 to 30 cm tall
- Foliage
- Deciduous, small and toothed leaves
- Hardiness
- Hardy, withstands mountain winters
- Origin
- Alpine and subalpine regions of central Europe
- Exposure
- Partial shade to full sun
Care
Watering
Eyebright prefers moist but well-drained soil. Water moderately during dry periods, particularly during spring growth and flowering. Avoid excessive moisture that could promote root rot. In mountainous areas, natural rainfall is usually sufficient.
Exposure
This plant thrives in partial shade to full sun depending on local conditions. In warm regions, partial afternoon shade is beneficial. It appreciates airy, well-ventilated sites, typical of alpine environments.
Soil
Eyebright prefers light, well-drained, moderately fertile soil that is slightly acidic to neutral. It tolerates poor, rocky soils characteristic of its native habitat. Good drainage is essential to prevent waterlogging.
Pruning
No pruning is necessary; this plant has a naturally compact form. You can remove spent flowers to extend flowering, but it's not required. Allow it to self-seed naturally after flowering if you wish to maintain the population.
Feeding
Eyebright requires virtually no fertilizer. It thrives in lean, rocky soils. Excessive nitrogen encourages foliage at the expense of flowering. In a cultivated setting, a light application of balanced compost in spring is sufficient.
Diseases and pests
This small herb is generally very hardy and resistant to disease. Powdery mildew may occur in overly humid conditions; ensure good air circulation. No major pests are known to affect it. Root rot can occur if drainage is inadequate.
Did you know?
Eyebright gets its name from Austrian botanist Richard von Wettstein. Traditionally, eyebrights (genus Euphrasia) have long been used in folk medicine to support eye health, hence the English nickname "eyebright." This small, discreet mountain flower concentrates remarkable resistance to extreme conditions and poor soils.
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.