Milkweed is a great plant for the garden and provides habitat for many creatures. In addition to being a host plant to the monarch butterfly, milkweed offers many other benefits:
Milkweed flowers produce nectar that all butterfly species benefit from.
Honey bees take nectar from milkweed flowers. With the decline of honey bee populations in the US, planting milkweed in your garden can help to provide feeding stations as they fly between crop fields and orchards.
Hummingbirds often use the floss from milkweed seed pods to line their nests.

Hummingbirds often use the floss from milkweed seed pods to line their nests.
Though weeds are considered unwanted plants, many species of weeds are being used as herbs from decades. Milkweed or Calotropis gigantea is a one of those useful weeds which is used as a medicinal plant. It is used in herbal medicine for a variety of ailments such as fevers, rheumatism, indigestion, cough, cold, eczema, asthma, elephantiasis, nausea, vomiting, and diarrhea.