The best times to apply weed and feed in Wisconsin are late May and early September to early October, when weeds are easiest to target and your grass is ready for nourishment.
An easy way to remember the timing is to apply weed and feed around Memorial Day and Labor Day.
But why exactly are spring and fall ideal for weed and feed? Let’s explore how these seasons set your lawn up for success.
Best times to apply weed and feed in Wisconsin
Weed and feed combines a herbicide to kill weeds and a fertilizer to nourish your lawn. To get the most out of the best weed and feed products, timing is everything. Here are the best times to apply weed and feed in Wisconsin:
Spring application (May)
Late spring to early summer is one of the most important times to apply weed and feed in Wisconsin. The best time to apply is in late May (around Memorial Day), as your lawn is just waking up from winter dormancy, and weeds are just starting to sprout.*
Not only will the herbicide target these early weeds while they’re small and actively growing, but the fertilizer will also give your grass the nutrient boost it needs to grow lush and strong after winter.
Pro Tip: For the best results, make sure your lawn is moist before applying weed and feed. A light watering the day before should do the trick. After applying, keep an eye on the weather forecast — avoid applying if rain is expected within 24 to 48 hours, as it could wash away the treatment before it has a chance to work.
*Weed and feed products can contain either a pre-emergent herbicide or a post-emergent herbicide. In this article, we’re assuming the use of a post-emergent product.
Fall application (September to October)
The ideal time for fall application is in early September (around Labor Day) to early October. Fall is another excellent time to apply weed and feed, especially if you missed the spring window. Fall applications are particularly effective against perennial weeds and will strengthen your lawn’s roots to prepare for winter.
Pro Tip: Avoid applying weed and feed in summer and winter. Wisconsin’s hot summer can stress your grass, and applying fertilizer during this time can burn your lawn. Similarly, applying weed and feed during winter is ineffective because the ground is frozen, and the grass is dormant.
How to apply weed and feed in Wisconsin
Here is a basic outline for how to use weed and feed on your lawn:
- Mow your lawn a few days before application.
- Water lightly.
- Use a spreader for even coverage.
- Keep pets and kids off the lawn for 24 to 48 hours.
- Wait a day before watering again.
For a complete step-by-step guide, check out: “How and When to Apply Weed Feed on Your Lawn.”
More lawn resources for Wisconsin
Taking care of your lawn goes beyond just applying weed and feed. Here are other helpful guides to ensure your Wisconsin lawn stays healthy year-round:
Lawn care:
- The Best Time to Dethatch Your Lawn in Wisconsin
- The Best Time to Aerate Your Lawn in Wisconsin
- The Best Time to Plant Grass Seed in Wisconsin
- When Does Grass Stop Growing in Wisconsin?
- The Best Grass Seed for Wisconsin Lawns
- The Best Ornamental Grasses for Wisconsin
- The Best Ground Cover Plants for Wisconsin
Weeds and pests:
FAQ about weed and feed
Are there any cons to using weed and feed?
Yes, weed and feed can be harmful if used incorrectly, like in hot weather or on dry soil. It may burn your grass or damage nearby plants. For more information on potential risks, check out: “Is Weed and Feed Bad for Your Lawn?”
What are the most common weeds in Wisconsin that weed and feed helps with?
Common broadleaf weeds like creeping charlie, common ragweed, and dandelion are frequently targeted by weed and feed products in Wisconsin. For a more comprehensive list of local weeds, check out “The Most Common Weeds in Wisconsin.”
Can I use weed and feed if I’m planning to plant clover?
Clover is considered a weed by some, but others prefer it as a lawn alternative. If you plan to plant clover, it’s best to avoid weed and feed as the herbicide will target and kill the clover. Discover whether planting clover is right for your lawn by exploring these helpful guides:
How does weed and feed fit into overall lawn care for Wisconsin?
Weed and feed is one part of maintaining a healthy lawn in Wisconsin. Other important tasks include dethatching, aerating, applying grub control, and fertilizing. To get a complete picture of your lawn care schedule, visit: “Month-to-Month Wisconsin Lawn Care Calendar.”
When to call a pro
Timing your weed and feed application correctly in Wisconsin is key to a healthy lawn. By treating weeds in the spring and fall while ensuring your grass gets the nutrients it needs, you can keep your yard looking its best.
Need help? Contact a local lawn care expert for personalized services to keep your lawn lush and weed-free all year round.
Main Image Credit: Manor House in Kenosha, WI | Teemu008 | Flickr | CC BY-SA 2.0
