Chamaenerion dodonaei
Chamaenerion dodonaei · Onagraceae
The gardener's calendar
Ideal time to plant chamaenerion dodonaei: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- Dodone's Willowherb
- Family
- Onagraceae
- Foliage
- Deciduous
- Flowering
- July to September, rose-magenta flowers
- Adult size
- 60 to 120 cm tall
- Growth rate
- Fast
- Hardiness
- Hardy, down to –15 °C
- Origin
- Alps, mountainous regions of Europe
Care
Light exposure
Place this plant in full sun or partial shade to encourage abundant flowering. It tolerates sunny positions well, even at altitude, and adapts to partial shade without issue. Avoid full shade, which would slow its growth.
Watering
Keep the soil moist during the growing season, especially in summer. Water regularly without waterlogging; willowherb prefers moist but well-draining substrate. Reduce watering in winter when the plant goes dormant.
Soil and preparation
Choose well-draining soil, slightly acidic to neutral, enriched with organic matter. This mountain species appreciates light, permeable substrates. Improve heavy soil with compost or gravel.
Fertilizing
A moderate fertilizer application in spring is enough to support growth. You can add balanced fertilizer monthly during flowering if the soil is depleted. Avoid excess nitrogen, which would promote foliage at the expense of flowers.
Pruning and training
Pinch young stems to branch the plant and achieve a denser habit. In late winter or after flowering, you can cut the plant back to 10–15 cm from the ground to rejuvenate the clump. Remove faded flowers to extend the flowering period.
Diseases and pests
Willowherb is generally robust and rarely subject to serious diseases. Monitor excess moisture, which could promote root rot or powdery mildew. Good air circulation prevents most fungal problems.
Did you know?
Dodone's Willowherb takes its name from Dutch botanist Rembert Dodoens (1517–1585). In mountains, this plant displays a remarkable ability to quickly colonize degraded or burned areas, thanks to its lightweight seeds dispersed by wind, making it a valued ecological pioneer in alpine ecosystem restoration.
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.