On Thu, 04 Mar 2004 07:34:51 -0500, Paul E. Lehmann wrote:

When is the best time to apply weed and feed to the lawn?
In Central Maryland Zone 6
Does the stuff really work?

When in doubt, contact your county extension agent. Much better advice
than what you can get here because the advice is area specific.

If you've never used the extension office before, it's time you discover
it. A good public resource and "free", a gardener's middle name.