Yukka filamentosa or Adam's Needle is a large evergreen plant from dry climates, it has tall, sword-shaped leaves. Once established in summer it will send up huge panicles of bell-shaped white flowers. Sold as a small tuber about 10 cm length for you to plant yourself, just dig a little hole about 20 cm deep, place the tuber in then cover with soil, firm down and water. You can buy one, two or three tubers with this order.