snake's head iris · Soil

snake's head iris · Iris tuberosa
Also known as: black widow; onion iris; widow iris

Plant tubers 10cm (4in) deep in autumn, in moderately fertile, sharply drained alkaline soil in full sun. Dry summers encourage flowering

Watering: Medium moisture in growth, then drier once flowering fully finishesSunlight: Full sunHarmful if eaten. Wear gloves and other protective equipment when handling