Arisaema 'Tortuosum' is a captivating Himalayan species that brings height, elegance, and a touch of the unexpected to shaded gardens. The spathe itself is typically green to olive with soft stripes or mottling, curving gracefully around the base of the towering spadix.
Known as the Whipcord Cobra Lily, Arisaema 'Tortuosum' stands apart from other varieties for its extraordinary flower, a tall, upright spathe crowned by a very long, narrow spadix that rises dramatically above the hood. The effect is architectural, surreal, and instantly eye-catching.
Plant Arisaema in a cool, shaded location, in well-drained, rich soil. Tubers should be nestled in 15-25cm deep and spaced 15-20cm apart. Soil should be consistently moist without becoming waterlogged as the tubers are susceptible to rot. These intriguing woodland dwellers produce distinctive and unique hooded blooms, reaching heights of 40-60cm from June to September. Apply mulch around the plants in late autumn to protect Arisaema from frost.
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Originating from the Eastern Himalayas, Arisaema ‘Speciosum’ is a spectacular, exotic plant which looks as though it belongs on another planet – but you can grow it in your garden!
Arisaema are often called the ‘Cobra Lily’ due to the distinctive, hooded, serpentine shape of their inflorescens. Striped by bands of oxblood red interspersed with veins of pale green, the hood of Arisaema ‘Speciosum’ gradually unfurls to reveal a prominent spadix.
Spreading above the unusual flowers, broad, ornamental leaves are held on thick, mottled stems, creating a structural statement with their architectural form. An astonishing focal point for a damp, shady part of your garden.
Orders for Summer Flowering Bulbs & Plants will be sent from mid March to late April.
We use Whistl for deliveries and our ordering process allows you to provide special instructions such as leaving in a safe place should you happen to be out when your bulbs are delivered or if you require a different delivery date.
Should you have any other order requirements other than those listed please contact us on 01622 840229 before placing an order.
Current charges per order are as below and include VAT.
| UK Mainland, Channel Islands and Northern Ireland | £ 5.95 |
Download our catalogue for Spring 2026 showcasing summer flowering varieties, the widest selection of bulbs from a single supplier in the UK with many rare and unique varieties. You can also hear about all the latest news and offers from de Jager.
