The asparagus fern is not really a fern at all. It is a member of the Liliaceae family and is related to the onion, garlic and the lily. But unlike those plants, the asparagus fern is poisonous. Many gardeners like it, though, because it's long-lived and so easy to grow that it actually thrives on a fair bit of neglect. The asparagus fern reproduces through the production of little 'bulblets' that root themselves while still attached to the parent plant. If you do not have baby asparagus ferns in mind, its easy to get rid these bulblets when you re-pot the plant.
Remove your asparagus fern from its pot. Place the pot on its side. Hit the sides of the pot with an open palm to loosen the soil. Then pull the asparagus fern out by its base. But don't pull too hard or you'll damage the plant. If it is stubborn, run a knife along the inside of the pot and try pulling the plant out again.
Shake the soil from the asparagus fern's roots.
Use a clean, sharp knife to separate the bulblets and the attached foliage from the parent plant.
Re-pot the asparagus fern using fresh soil. If it was hard to remove from its first pot, re-pot it in a pot that is 1 inch larger in diameter.
Water the asparagus fern until water drips out of the pot's drainage holes.
Discard the bulblets if you do not want any more asparagus ferns around. Or plant them in their own pots and water them.