Arisaema consanguineum
A striking species of cobra lily, prized for elegant, tropical-looking foliage and unusual hooded flowers. Its deep green, umbrella-like leaflets with long thin tips, often with silvery undersides, create a dramatic display from late spring through autumn.
In early to midsummer, it produces distinctive, slender flowers (spathes) of green tinged with browns, giving the plant an otherworldly appearance. As the season progresses, clusters of bright red berries form, adding further interest into autumn.
Sold currently as flowering-size corms.
Height & Spread: Reaches 60-100cm in height with a spread of approximately 30-50cm.
Soil: Prefers moist, humus-rich, well-drained soil; thrives in woodland settings.
Position: Partial to full shade; ideal for woodland borders & shaded beds.
Flowering Time: Early to midsummer (May to June).
A striking species of cobra lily, prized for elegant, tropical-looking foliage and unusual hooded flowers. Its deep green, umbrella-like leaflets with long thin tips, often with silvery undersides, create a dramatic display from late spring through autumn.
In early to midsummer, it produces distinctive, slender flowers (spathes) of green tinged with browns, giving the plant an otherworldly appearance. As the season progresses, clusters of bright red berries form, adding further interest into autumn.
Sold currently as flowering-size corms.
Height & Spread: Reaches 60-100cm in height with a spread of approximately 30-50cm.
Soil: Prefers moist, humus-rich, well-drained soil; thrives in woodland settings.
Position: Partial to full shade; ideal for woodland borders & shaded beds.
Flowering Time: Early to midsummer (May to June).
A striking species of cobra lily, prized for elegant, tropical-looking foliage and unusual hooded flowers. Its deep green, umbrella-like leaflets with long thin tips, often with silvery undersides, create a dramatic display from late spring through autumn.
In early to midsummer, it produces distinctive, slender flowers (spathes) of green tinged with browns, giving the plant an otherworldly appearance. As the season progresses, clusters of bright red berries form, adding further interest into autumn.
Sold currently as flowering-size corms.
Height & Spread: Reaches 60-100cm in height with a spread of approximately 30-50cm.
Soil: Prefers moist, humus-rich, well-drained soil; thrives in woodland settings.
Position: Partial to full shade; ideal for woodland borders & shaded beds.
Flowering Time: Early to midsummer (May to June).
Arisaema are fascinating woodland perennials, but to thrive in Scotland’s climate, they require careful planting and winter protection. Here are some essential tips to ensure their successful establishment:
1. Planting Depth & Position
Arisaema tubers should be planted deeply, around 5 inches (12-15cm) below the soil level. This depth helps protect them from winter cold and excessive moisture. Choose a sheltered, partially shaded spot with dappled light, such as under deciduous trees or among ferns and hostas. Avoid areas prone to waterlogging.
2. Improving Drainage
Good drainage is essential to prevent tuber rot, especially in Scotland’s wetter conditions. When planting, add a layer of gravel or coarse grit at the base of the hole to improve drainage and prevent standing water around the tuber. Incorporate leaf mould or well-rotted compost into the soil to enhance structure while maintaining moisture balance.
3. Winter Protection
In colder regions, a thick winter mulch is highly recommended. Once the foliage dies back in autumn, cover the planting area with a layer of leaf litter, or bark mulch to insulate the tubers from deep frost. In particularly harsh winters, consider adding a horticultural fleece or an upturned pot over the crown for additional protection.
4. Watering & Care
Keep the soil evenly moist during the growing season, but avoid overwatering. Arisaema dislike sitting in water. Once dormant, reduce watering significantly, as excess winter moisture can lead to rot. Avoid disturbing the tubers—Arisaema tend to settle in over time and perform best when left undisturbed.