Epipactis palustris (Marsh Helleborine)
Epipactis palustris (Marsh Helleborine) is a rhizomatous, terrestrial orchid with one-sided racemes of up to 25 small flowers presenting a variable combination of brownish-purple and creamy-green shades. Blooming in summer, the delicate blossoms are borne on a green stem, flushed pink-to-brown, that can reach 24 in. (60 cm). This orchid bears broad funnel-shaped leaves, 4-5 in. long (10-12 cm), sometimes flushed purple, that clasp the lower stem. Approximately two months after flowering, the foliage fades, then disappear completely with the arrival of winter. Highly vigorous, Marsh Helleborine spreads by rhizomes and self-seeding to form large colonies over time. Native to Europe and Asia, Marsh Helleborine grows naturally in fens, grassland, meadows, seeps, along stream banks. In its native Europe, populations are declining where this orchid is threatened by habitat drainage and the enrichment of groundwater by fertilizers. The plants are protected by CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention).
- Grows up to 12-24 in. tall and wide (30-60 cm).
- Performs best in consistently moist to wet, neutral to alkaline, well-drained soils in full or light shade. Soils should not be allowed to dry out.
- A lovely addition to cottage gardens, rain gardens, near ponds and streams.
- Virtually disease free.
- Propagate by division in spring.
- Native to Europe and Asia.
Requirements
Hardiness | 6 – 9 |
---|---|
Plant Type | Orchids, Perennials |
Plant Family | Epipactis – Helleborines |
Exposure | Full Sun, Partial Sun |
Season of Interest | Summer (Early,Mid,Late) |
Height | 1' – 2' (30cm – 60cm) |
Spread | 1' – 2' (30cm – 60cm) |
Spacing | 12″ – 24″ (30cm – 60cm) |
Water Needs | Average, High |
Maintenance | Average |
Soil Type | Clay, Loam, Sand |
Soil pH | Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Moisture Retentive, Poorly Drained |
Characteristics | Showy |
Tolerance | Wet Soil |
Garden Uses | Ponds and Streams, Rain Gardens |
Garden Styles | Informal and Cottage |