prodiamine 4l pre-emergent herbicide Step 1

Stop weeds before they ever show up and give your lawn the nutrients it needs to wake up strong in spring. This professional-grade pre-emergent fertilizer creates a protective barrier in the soil to prevent crabgrass and other annual weeds from germinating—so your grass grows without competition.

With slow-release nitrogen for steady feeding, Step 1 sets the foundation for a thicker, healthier lawn all season long.

Why You’ll Love This

• Prevents crabgrass and annual weeds before they sprout

• Feeds your lawn for strong early-season growth

• Helps turf fill in thicker with less weed pressure

• Part of The Mill’s proven 4-Step Lawn Program

When & How to Use

• Apply: Mid-March – April 15

• Coverage: 1 bag per 12,500 sq. ft., or 1/4 of an acre.

• Important: Do not seed for 4 months after application

Pro Tip
🧪 Best results start with a soil test. Our team can help you fine-tune your lawn care plan before Step 1.

You’re Here: Step 1 → Step 2 → Step 3 → Step 4

Active Weed Prevention: Prodiamine

Available in a 50 lb. bag

Not available for sale or use in: AK, AR, AZ, CA, DC, FL, HI, IA, KS, KY, LA, ME, MN, MS, MT, ND, NH, NV, OH, OK, OR, TX, VT, WA, WI, WV