According to the directions below you can freeze asparagus. You will need to blanch it first. Most grocery stores sell the candy apple mix in the box. I have found that for the them to turn out the humidity needs to be fairly low and you will need a candy thermometer. Let me know if works slicing the apples.
Asparagus preparation: Select young, tender stalks with compact tips. Sort according to thickness of stalk.
Wash asparagus thoroughly and cut or break off and discard tough parts of stalks. Leave spears in lengths to fit the package or cut in 2-inch lengths.
Water blanch according to thickness of stalk:
Small stalks - 2 minutes
Medium stalks - 3 minutes
Large stalks - 4 minutes
Cool promptly in cold water and drain.
Pack into containers, leaving no headspace.
When packing spears, alternate tips and stem ends. In containers that are wider at the top than bottom, pack asparagus with tips down.
Seal, label and freeze.
Source: Michigan State Universtiy Extenstion Service.