Stachys alpina
Stachys alpina · Lamiaceae
The gardener's calendar
Ideal time to plant stachys alpina: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Lamiaceae
- Foliage
- Deciduous
- Flowering
- June to August
- Adult size
- 30 to 60 cm in height
- Hardiness
- Very hardy (-20 °C)
- Origin
- Mountain ranges of central and southern Europe
- Soil type
- Well-drained soil, slightly alkaline
Care
Exposure
Alpine Betony prefers full sun to partial shade for generous flowering. It also tolerates slightly shaded areas, though fruiting will be less abundant. Avoid excessively shaded locations that reduce the plant's vigor.
Soil and drainage
This alpine plant requires well-drained soil, even if poor, and appreciates slightly alkaline or neutral terrain. Amending with gravel or sand improves drainage in heavy soils. Alpine Betony dreads waterlogging, especially in winter.
Watering
Water moderately after planting to ensure establishment. Once established, the plant tolerates drought well thanks to its deep root system. During prolonged summer periods, occasional watering maintains better flowering.
Pruning and maintenance
Cut back the plant slightly after flowering to promote a compact shape and possible reflowering. Cleaning dry stems in late winter is usually sufficient. Pruning is not essential; the plant develops naturally.
Fertilizer
Alpine Betony is undemanding and requires only moderate fertilization. Light compost in spring is sufficient. Avoid excess nitrogen which would encourage foliage at the expense of flowering.
Diseases and pests
This plant is very resistant to common garden diseases. In overly moist soils, root rot may occur. Install it in well-drained soil to prevent any problems. Pests rarely affect it.
Did you know?
Alpine Betony is a characteristic plant of alpine meadows and rock gardens: it traditionally features in mountain botanical gardens. Its Latin name Stachys comes from the Greek 'stachys' meaning 'spike', referring to its dense, upright inflorescence that resembles small purple wheat spikes. Historically, several species of the Stachys genus have been used in alpine herbal medicine for their reputed digestive 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.