Milkweed

I planted one milkweed plant because they say it attracts the monarch butterfly. Never had any luck, but felt if I planted a butterfly garden you gotta include milkweek right? A few weeks later I noticed 3 juicy monarch catepillars munching on the leaves. They were there for several days and then gone suddenly. A few days later my husband noticed a funny thing on the juniper along the woods and sure enough it was the cocoon. I checked it each day and as soon as it starting changing color I clipped the branch and put in my daughter's pop up butterfly house. So far it hasn't hatched, but I'll post when it does.