OK, I grow both. Garlic is best planted in November but Spring is also fine, it just takes longer to mature, they must be kept on the dry side so the soil might be too wet. If not you can plant now but some cloche type protection would be advisable.
I planted three types of asparagus three years ago so we are about to harvest this Spring for the first time. Very excited. Two green varieties & Purple Pacific. Hopefully your crowns have not dried out so I would consider getting them in the ground asap, no need to protect as they are super tough plants. However, asparagus nurseries should start sending their crowns out soon for Spring planting so your well in time. I assume they are 'crowns' & not seed ? No harvesting for at least two years to allow the plants to build up in size & strength. Good luck.

Bampy is right, garlic can be planted now (some types are intended to be), so just plant about an inch deep from top of clove to surface and wait...

just popped a photo up taken today of my garlic which I planted last November. This harsh winter hasnt heeded growth at all. Tough if kept on the dry side.
I missed the Autumn planting slot year before last OldSparky so planted them the following Spring 2010, although not quite so prolific we are still cooking great garlic from that harvest. Solent White is the variety if anyone is interested in a great keeper with excellent flavour.