Here is my previous post regarding the care of your Amaryllis.
It takes a week or two for all the leaves to wither back.
As you can see, there is a small leaf emerging from the bulb top. It looks familiar, doesn't it? Many amaryllis bulbs look this way in the fall when they are available to purchase. Not to worry, that just means the bulb wants to start off fresh again.
Right now, I am placing the bulb back into the empty pot (composted the used soil) and I will place it in my cool, dark laundry room for 2 weeks or so. I will keep an eye on it throughout the next weeks. Once the roots go limp and brittle, I will remove as many as I can without damaging the bulb. Once I've tidied up the bulb (don't leave too much debris, or mold may develop), I will place it in a bowl of vermiculite to keep it dry. Keeping it in a cool dark place until early November, when I plan to start the process all over again!
Hope yours stores well. What other medium do you store your bulbs in?
Here is my post on how to start the process all over again. Enjoy!