asparagus and rhubarb

I'd wrap them in damp newspapers and refrigerate them

 

You can put them in a 5 gallon pot with sandy soil in it, slightly damp, or the newspaper would work, too. I've just used the bucket. You don't want them soggy, just damp.

 

Dunno why you'd need to wait til after danger of frost.... my rhubarb is coming up already (zone 5)! I'd plant it and mulch it well.

 

Both are light frost hardy upon planting, then as they mature they survive the hardest winters (i.e., they're perennials).

 

Check with your state's Extension Service. Each county has it's own Cooperative Extension Office which provides free publications and information for the asking. They can also tell you the average last frost date for your area.

The following two images are excerpts from the Vegetable Planting and Planning Calendar for Missouri (download the pdf complete with spring and fall planting dates, how much to plant per person, etc. Just call up the office in your county. Look under the "Government" section (usually blue pages) of your phone book under "Extension". They will have valuable vegetable/gardening tables available specifically for your area from data they've collected from growing those crops in your state.

Violet