Arisaema galeatum
Arisaema galeatum
Arisaema galeatum
Cobra lily
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This plant carries a 12 months recovery warranty
More information
We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
The cobra plant, known scientifically as Arisaema galeanum, is native to the Himalayas and is a large species in the arum family. It produces dark green spathes with a flared, helmet-like appendage at the tip. The flowers grow up to 60 cm (24in) above the ground, sheltered under a textured leaf that sits at a height of 140 cm (55in). These flowers appear in early summer and are followed by a large trifoliate leaf that is pale green with a rose-violet wash. This plant thrives in dappled light and rich, humus soil and can tolerate cold temperatures in well-drained soil.
There are currently over 150 species of Arisaema that are mostly native to Asia. Over half of these species are found in temperate zones and can be easily cultivated in our latitudes. These plants prefer a wooded environment, humus-rich, cool soil but not waterlogged.
The flowers are dioecious, meaning there is only one sex per plant. If a male plant (even of a different species) is planted nearby, the female plant produces red fruits at the end of the season. This plant enters a vegetative rest at the end of summer as a tuber.
The cobra plant is not well-known to gardeners but can be planted in cool, well-drained, and light soil. It can create beautiful and original potted plants paired with ferns, bamboo, hostas, Epimedium, Bégonia grandis, rhododendrons, azaleas, or oriental lilies.
Arisaema galeatum in pictures
Flowering
Foliage
Plant habit
Botanical data
Arisaema
galeatum
Araceae
Cobra lily
Himalayas
Planting and care
Arisaemas are tough plants that require specific conditions to thrive. They grow best in soil that is light, humus-rich, and well-draining. During the summer, the soil should never dry out, but in the winter, it should not be waterlogged as it can cause the bulb to rot. Partial shade near large trees with a west-facing exposure is the best location to plant them.
If you have heavy soil, you can mix in 1/3 leaf compost and 1/3 non-chalky sand to improve it. Mix it to a depth and width of 20-25cm (8-10in). When planting the Arisaema galeatum bulb, create a small bed of perlite and plant the bulb at a depth of 6-8cm (2-3in). Cover it with substrate to prevent rotting during the winter.
For planting in a pot, use a wide terracotta pot that is wider than it is tall. Fill it with a substrate that is half perlite or vermiculite and half leaf compost. Plant the bulbs 6-8cm (2-3in) underground and keep the soil moist, but not waterlogged. During winter, store the pot in a frost-free location and maintain a slightly cool temperature. Every 2 weeks, give it a few drops of water. In early spring, around April, resume watering as soon as the bulbs begin to sprout.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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