Epilobium lamyi
Epilobium lamyi · Onagraceae
The gardener's calendar
Ideal time to plant epilobium lamyi: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Onagraceae
- Type
- Perennial herb
- Foliage
- Deciduous
- Flowering
- Summer (July to September)
- Adult size
- 30 to 60 cm in height
- Hardiness
- Very good (down to -20 °C)
- Origin
- Central and southern Europe
- Exposure
- Sun to partial shade
Care
Watering
Lamy's Willowherb appreciates moderate and regular moisture, especially during the summer period. Water during dry spells, avoiding excess water which would promote rot. Watering at the base is preferable to limit leaf diseases.
Exposure
This plant adapts well to sun and partial shade. It tolerates lightly shaded areas, although a sunny exposure strengthens flowering. Protect it from intense sunburn in very hot regions.
Pruning and maintenance
Cut back the stems in late autumn or early spring to ground level to promote vigorous growth. Remove spent flowers regularly to extend flowering and prevent excessive self-seeding.
Soil
Willowherb appreciates well-drained, light soil rich in organic matter. It also tolerates poor or rocky soils. Improve heavy soil by incorporating compost or coarse sand.
Fertilizer
An application of well-decomposed compost in spring is generally sufficient. Avoid excess nitrogen which would promote foliage at the expense of flowering.
Diseases and pests
This species is generally robust and rarely subject to diseases. Watch for powdery mildew in case of excessive humidity and poor air circulation. Excess watering promotes root rot.
Did you know?
Lamy's Willowherb is a pioneer plant that colonizes disturbed lands and wastelands in Europe. Its name "Willowherb" comes from Greek and means "on the silique" (the fruit), which rises spectacularly above the flowers. Long used in traditional herbal medicine, it is now the subject of modern research for its potential properties.
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.