This is a striking, drought-adapted plant known for its dramatic presence year-round and spectacular flowering display. The plant begins as a large, rounded rosette of silver-green, spiky leaves. When mature — typically after 5 to 6 years — it sends up an impressive flower spike that grows 10 to 15 feet tall in just a few weeks. The towering spike is covered with hundreds of bell-shaped flowers, ranging from white to pale purple, creating a stunning visual impact in the landscape.