Giant Milkweed (Calotropis gigantea) is fantastic. Stunning flowers. Thick silvery leaves.
The leaves grow to almost 12″ long and 6″ wide. Growing as tall as a building where winters are warm and the plant does not freeze to the ground. Use as annuals anywhere else.
Can get to a height of 8′ to 12’ tall.
Soil average to rich.
Full sun.
Fantastic think lavender flowers.
Zones 9 and warmer.
Propagation: seed, stem cuttings