Epilobium brunnescens
Epilobium brunnescens · Onagraceae
The gardener's calendar
Ideal time to plant epilobium brunnescens: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- Reddish-brown Willowherb
- Family
- Onagraceae
- Type
- Perennial herbaceous plant
- Adult size
- 20 to 40 cm in height
- Flowering
- July to September
- Foliage
- Deciduous
- Hardiness
- Very hardy (down to -15°C)
- Origin
- New Zealand
Care
Light Exposure
Place this plant in full sun or partial shade. It tolerates sunny areas well and produces better flowering with at least 4 to 5 hours of direct sunlight. In very hot climates, light afternoon shade can be beneficial.
Watering
Keep the soil moderately moist during growth and flowering. Water regularly without allowing water to stagnate, as Willowherb fears excess moisture. Reduce watering in winter when the plant goes dormant.
Soil Type
This plant adapts to most soils but prefers light, well-draining, slightly acidic potting soil. Avoid overly compact soils by improving drainage with sand or gravel if necessary.
Pruning and Maintenance
Remove faded flowers regularly to extend flowering. At the end of autumn, cut the plant back to ground level since it is deciduous. This pruning encourages vigorous regrowth in spring.
Fertiliser
A moderate application of balanced fertiliser in spring is quite sufficient. This plant is not very demanding and generally makes do with nutrients present in good potting soil. Avoid excess which could favour foliage at the expense of flowering.
Diseases and Pests
Reddish-brown Willowherb is generally very robust and little affected by major pests or diseases. Watch for possible powdery mildew in case of excessive humidity and poor air circulation. Good ventilation and watering at the base prevent most problems.
Did you know?
Native to New Zealand, Epilobium brunnescens has naturalised in several regions of Europe and Asia, where it sometimes colonises disturbed and rocky areas. In New Zealand, its Maori name 'oreroa' reflects its character as a robust pioneer plant, capable of repopulating impoverished soils after natural disturbances.
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.