Giant Helleborine, Stream Orchid, Chatterbox Orchid, Giant Hellebore
Epipactis gigantea (Giant Helleborine) is a terrestrial orchid with loose spikes of up to 32 showy flowers, 1 in. across (3 cm), spread out along the stem. The sepals are green or greenish, with petals ranging from greenish to pink to rose, often with purple-brown or red markings or veins. Blooming for several weeks from mid-spring to mid-summer, the flowers are borne on erect stems bearing mid-green, lance-shaped leaves. They bloom in sequence up the stem. Approximately two months after flowering, the foliage fades, then disappear completely with the arrival of winter. The root system forms a dense spreading clump of rhizomes. Giant Helleborine will spread over time. Native to western North America, Giant Helleborine grows naturally in wet areas in a variety of habitats, including riverbanks, hot springs, and meadows. Ideal for a rock or woodland garden or in a wildflower meadow.
| Hardiness |
5 - 10 |
|---|---|
| Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Orchids, Perennials |
| Plant Family | Orchidaceae |
| Genus | Epipactis |
| Exposure | Partial Sun |
| Season of Interest | Spring (Mid, Late), Summer (Early, Mid) |
| Height | 1' - 3' (30cm - 90cm) |
| Spread | 4" - 6" (10cm - 15cm) |
| Spacing | 6" (15cm) |
| Maintenance | Low |
| Water Needs | High |
| Soil Type | Chalk, Clay, Loam |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Poorly Drained |
| Characteristics | Showy |
| Native Plants | United States, California, Midwest, Pacific Northwest, Southwest, Rocky Mountains, South Dakota, Idaho, Oregon, Washington, Texas, Arizona, Nevada, New Mexico, Oklahoma, Utah, Wyoming, Montana, Colorado |
| Tolerance | Deer |
| Garden Uses | Beds And Borders, Bog Gardens, Patio And Containers, Ponds And Streams |
| Garden Styles | Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow |
| Hardiness |
5 - 10 |
|---|---|
| Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Orchids, Perennials |
| Plant Family | Orchidaceae |
| Genus | Epipactis |
| Exposure | Partial Sun |
| Season of Interest | Spring (Mid, Late), Summer (Early, Mid) |
| Height | 1' - 3' (30cm - 90cm) |
| Spread | 4" - 6" (10cm - 15cm) |
| Spacing | 6" (15cm) |
| Maintenance | Low |
| Water Needs | High |
| Soil Type | Chalk, Clay, Loam |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Poorly Drained |
| Characteristics | Showy |
| Native Plants | United States, California, Midwest, Pacific Northwest, Southwest, Rocky Mountains, South Dakota, Idaho, Oregon, Washington, Texas, Arizona, Nevada, New Mexico, Oklahoma, Utah, Wyoming, Montana, Colorado |
| Tolerance | Deer |
| Garden Uses | Beds And Borders, Bog Gardens, Patio And Containers, Ponds And Streams |
| Garden Styles | Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow |
How many Epipactis gigantea (Giant Helleborine) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Epipactis gigantea (Giant Helleborine) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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