GreenThumb Crabgrass Preventer Lawn Food

You should apply this product in the spring, specifically before crabgrass seeds begin to germinate. Timing is critical for pre-emergent herbicides, so aim for application when soil temperatures start to warm up but before you see active weed growth.

No, this is a pre-emergent herbicide, which means it is designed to stop crabgrass seeds from sprouting. It will not eliminate crabgrass that has already established itself in your lawn.

Thanks to the controlled-release nitrogen formula, your lawn will receive steady nourishment for up to 16 weeks. This slow-release approach helps maintain consistent growth and color throughout the spring and early summer.

This product is not labeled as pet or child safe. It is recommended to keep children and pets off the treated lawn until the granules have been watered in and the grass has completely dried.

Generally, you should avoid using pre-emergent crabgrass preventers on newly seeded areas, as they can inhibit the germination of your grass seed as well. It is best to wait until your new grass has been mowed at least three or four times before applying this product.

The 26-0-3 NPK ratio indicates that this fertilizer is high in nitrogen (26%) for vigorous green growth, contains no phosphorus (0%), and includes a small amount of potassium (3%) for overall plant health. This balance is specifically tailored to boost leaf development and lawn density.