dieing milkweed :(
Can someone with a Green thumb help me save these recently purchased milk weed plants. I planted them in this pot on 4/17, the day i received them from Got-milkweed.com, and on 4/21 they were dieing? Gave them water every day, and had them in sun room, where temp never dropped to below 32, and they had sun for 4-5 hours. Just switched soil with fresh garden soil from Home Depot today, but not sure if that's enough to save them?