Hello Community, I have created a lawn program that I am not sure about. I am wondering if there is a period that I cannot put down grass seed after I put down pre emergent. I live in south east Tennessee. Please weigh in your opinions all help is greatly appreciated. Step 1: ferti•lome For All Seasons Lawn Food Plus Crabgrass & Weed Preventer w/Prodiamine (16-0-8) Apply in January through mid April. Prevents grassy-type weeds (crabgrass and more) all season long (until fall) while it feeds your lawn. Step 2: ferti•lome Weed-Out plus Lawn Fertilizer with Trimec® (25-0-4) Apply in late April through May. Contains three weed killers to control broadleaf weeds such as henbit, dandelion, clover, chickweed, etc., while feeding your lawn. For best results DO NOT WATER IN. If no weed control is needed, substitute with Pro-Green Lawn Tonic (16-0-0), a fertilizer specially formulated for alkaline soils. Step 3: Natural Guard Soil Activator (Natural Soil Conditioner) Apply in spring or fall. Not a fertilizer, but this product REALLY greens up your lawn! Unlocks nutrients to improve soil structure and fertility. Enhances root development. Improves turf resistance to stress. Step 4: ferti•lome Winterizer (25-0-6) Apply in September through October to encourage maximum growth during the peak growing season. Step 5: ferti•lome Winterizer (25-0-6) Apply in October through December, about 30 days after your first Winterizer. Increases winter hardiness, keeps grass greener longer and promotes earlier spring green up. Now, after seeing my program when should I put down grass seed? Do I put down seed in Fall and Spring or just Fall? And do I have to wait like 4 weeks after putting down pre emergent to put down grass seed? Thanks!