Q: We planted our allium giganteum bulbs in the fall for the first time and loved them while they were in bloom. Now they are dead, we are wondering if we should cut the stalks down or leave them be. Also, do they come back again or do we need to replant the bulbs?
Anna Wyman
A: Some people like the look of dead flower heads standing through the winter. But after a while, alliums usually fall down or lean, so if you're the tidy type, you'll probably prefer to cut them down. The stems can be composted.
They should come back for you next spring, but don't always come back as strongly. A little bonemeal scratched around them in fall or a little compost should give them some encouragement.
Q: Can you give me some direction on how to get my asparagus ready for over-wintering?
Gerry Vandenberg
A: The plumes need to be cut down and composted and the roots covered with manure. This helps keep out the cold, prevent frost heaves and nourish the asparagus when it starts growing next spring. This is also a good time to take out any new, spindly seedlings that might crowd the main roots if allowed to develop.
Anne Marrison is happy to answer garden questions. Send them to [email protected].
