Milkweed is a perennial and can live up to twenty years in your garden. In other words, choosing to plant it can have a positive impact on several future monarch generations.

The monarch butterfly is being considered as a candidate for the endangered species list. Here's how you can help.

Monarch butterflies require milkweed plants as egg-laying sites, but they also migrate long distances every spring and fall, and the route from Mexico to Canada passes through the San Antonio area.

One butterfly comes so far, and then it will stop to reproduce, and then the offspring from that monarch will emerge from the chrysalis ... as they look for milkweed plants to lay their eggs.