Controlling weeds in the garden and lawn:
Any type of pre-emergent herbicide, including Crabgrass preventer, should be applied around mid-March (Crabgrass preventer as late as mid-April) to control weeds that will be trying to come up this spring.
Ask about Organica for flower beds and especially for the lawn. Their Lawn Booster is the best organic product on the market for controlling weeds in the lawn, including crabgrass.
Don't care about organic products? We also carry Preen for the garden and Fertilome Lawn Food plus Crabgrass Weed Control for the lawn.