Any Idea...?

[roadrunner]

I found this plant in a vacant, shady area and thought it looked neat, so I transplanted it in a sunnier spot in my front yard.

The plant is about 4 feet (1.2 meters) tall, but I'm not sure it's fully grown.

 

[Twigs]

Giant Calotrope, I know it as Crown Flower, or Giant Milkweed.
It has several names...

 

[roadrunner]

Thank you, I was thinking its flowers looked similar to a milkweed...only much bigger.

I got to read up on it now...wondering how the monarchs will react to the plant...

 

[Marck]

Giant Calotrope (Calotropis gigantea) in the Dogbane Family (Apocynaceae) is a large, beautiful shrub for tropical and subtropical gardens. The plant is quite toxic but also is used in Ayurvedic medicine. Monarch butterflies (Danaus plexippus) are known to use it as a larval food plant. Also called Crown Flower or Giant Milkweed, Calotropis gigantea is native to tropical Asia, Sri Lanka, Indonesia, and Hainan.

Another species, the Apple-of-Sodom (Calotropis procera) is a smaller shrub. It also has beautiful flowers, but of a different shape and coloration. Also known as King's Crown, it is native to tropical Asia, Arabia, and northern & central Africa.