What Is the Best Time to Apply Weed and Feed?

Apply weed and feed products in the early spring or fall for effective weed control and fertilization.

The best time to apply weed and feed to your lawn depends on the type of grass you have and the specific products you're using. However, there are general guidelines based on the growing season and the life cycle of weeds. Here's a breakdown of the best times to apply weed and feed:

 

### 1. **Spring Application:**

**Best Time:**

     - Early spring, usually between late March and early May, is the ideal time for the first application of weed and feed.

**Reasoning:**

     - Early spring is when many broadleaf weeds actively grow, making them more susceptible to herbicides in weed and feed products. Additionally, this timing allows the fertilizer component to support the lawn's growth as it enters the growing season.

**Cool-Season Grasses:**

     - If you have cool-season grasses like Kentucky bluegrass, fescue, or ryegrass, early spring is especially crucial for weed control.

 

### 2. **Fall Application:**

**Best Time:**

     - Late summer to early fall, typically between August and October, is the best time for the second application of weed and feed.

**Reasoning:**

     - Fall is another active growth period for many weeds, and applying weed control at this time helps prevent them from establishing before winter. Additionally, the lawn can benefit from the nutrients in the fertilizer to prepare for winter dormancy and promote early spring green-up.

**Warm-Season Grasses:**

     - For lawns with warm-season grasses like Bermuda grass, Zoysia grass, or St. Augustine grass, late spring to early summer is a good time for the first application, with a follow-up in early fall.

 

### 3. **Avoid Extreme Conditions:**

**Avoid Hot and Dry Periods:**

     - It's advisable to avoid applying weed and feed during periods of extreme heat and dryness. High temperatures and drought stress can make the lawn more sensitive to herbicides.

**Avoid Rainy Periods:**

     - Try to avoid applying weed and feed just before heavy rain, as it may wash away the product before it has a chance to be absorbed.

 

### Additional Tips:

**Read Product Instructions:**

  - Always read and follow the instructions on the specific weed and feed product you are using. Different products may have slightly different recommendations.

**Temperature Considerations:**

  - Ideal application temperatures are often in the range of 60–80°F (15–27°C) for optimal herbicide effectiveness.

**Mowing Before Application:**

  - Mow the lawn a few days before applying weed and feed. This helps the product come into contact with the weeds and allows better absorption.

**Watering After Application:**

  - Water the lawn after applying weed and feed if rain is not expected. This helps activate the herbicide and ensures that the fertilizer reaches the soil.

**Selective Herbicides:**

  - Most weed and feed products are formulated with selective herbicides that target broadleaf weeds while sparing grass. Ensure that the product is suitable for your type of grass.

 

By timing your weed and feed applications appropriately, you can effectively control weeds and promote a healthy, green lawn throughout the growing season.