Sword-leaved helleborine
Cephalanthera longifolia · Orchidaceae
The gardener's calendar
Ideal time to plant sword-leaved helleborine: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Orchidaceae
- Type
- Perennial herbaceous
- Foliage
- Deciduous
- Flowering
- April to June
- Adult size
- 20 to 50 cm height
- Hardiness
- Very hardy (down to -15°C)
- Origin
- Temperate Europe and Asia Minor
- Natural habitat
- Light woodlands, deciduous forests
Care
Light exposure
Place the cephalanthera in partial shade, away from direct scorching sun. In light woodlands or at the edge of forests, it will find ideal conditions. A north or north-east exposure works very well for cultivated plants.
Soil and planting
Prefer soil rich in organic matter, well-draining and slightly acidic, similar to woodland soil. A mix of potting soil, decomposed leaves and fine sand mimics natural conditions well. Plant in spring or autumn sparingly.
Watering
Keep the soil moist but not waterlogged, especially during spring growth. Water moderately and regularly during the growing season. Reduce watering after flowering and in winter, the dormant period.
Pruning and maintenance
No pruning is necessary. Leave faded flowers in place if you wish for natural seed dispersal. Simply tidy up the deciduous foliage at the end of autumn.
Fertilizer
Apply a very diluted balanced fertilizer in spring when growth starts. This wild orchid is not demanding; moderate feeding is sufficient. Favour organic amendments (fallen leaves) over chemical fertilizer.
Health and problems
This orchid is relatively robust and rarely affected by diseases in cultivation. Watch for excessive moisture that could promote rot. Good drainage and air circulation are usually enough to prevent any problems.
Did you know?
The sword-leaved cephalanthera is a native European orchid that has become rare in several regions, classified as protected in some countries. It fascinates botanists because it can survive several years without flowering if conditions aren't optimal, waiting for the right moment to produce its delicate white flowers. Its status as the 'ghost plant' of woodlands makes it a precious discovery for wild flora enthusiasts.
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.
Add this plant to my garden →Plants from the same family
- Chinese ground orchidBletilla striata
- Moth orchidPhalaenopsis amabilis
- Spotted orchidDactylorhiza maculata
- Lesser twaybladeNeottia ovata
- Broad-leaved helleborineEpipactis helleborine
- Western Marsh-orchidDactylorhiza majalis
Tips generated and checked by Viridia — adapt them to your local climate.