Proper lawn care is essential for maintaining a healthy and attractive outdoor space, and fertilization and weed control are two important aspects of this process.
In this blog, we’ll provide tips and techniques for fertilizing and controlling weeds in your lawn, including the types of fertilizers and weed control methods to use, when to apply them, and how to use them effectively.
We’ll also discuss the benefits of fertilization and weed control, as well as the potential drawbacks and potential risks to consider.
By following these guidelines, you can keep your lawn looking its best all year round.
How do Fertilize and Weed Control Lawns?
By following these tips, you can keep your lawn healthy and weed-free. Regular fertilization and weed control will help ensure a beautiful and lush lawn all season long.
Here is a step-by-step guide on how to fertilize and weed control lawns:
1. Know Your Grass Type
Different grass types have different fertilization and weed control needs. It’s important to identify the type of grass in your lawn so you can use the right products and techniques.
2. Fertilize at the Right Time
The best time to fertilize your lawn depends on the type of grass and the climate you live in. In general, it’s best to fertilize your lawn in spring when the grass is actively growing. Avoid fertilizing during the heat of summer or the cold of winter, as this can stress the grass.
3. Use the Right Fertilizer
Choose a fertilizer that is formulated for your grass type and the current growing conditions. Apply at the rates and frequencies specified on the label. Over fertilizing can lead to excess growth and increased pest and disease problems.
4. Water Properly
Proper watering is essential for healthy grass growth. Water deeply and infrequently to encourage deep root growth. Avoid frequent, shallow watering, as this can lead to weak, shallow roots.
5. Control Weeds
Weeds can compete with your grass for water, nutrients, and light, leading to a thin and unhealthy lawn. To control weeds, use a herbicide specifically formulated for the type of weeds you have. Follow the instructions on the label for proper application and safety precautions.
6. Maintain your Lawn
In addition to fertilization and weed control, it’s important to maintain your lawn by mowing regularly, watering appropriately, and controlling pests. By following these steps, you can keep your lawn looking healthy and attractive all year round.
7. Mow Correctly
Mowing your lawn correctly can help prevent weed growth. Keep your mower blade sharp to ensure a clean cut and avoid tearing the grass. Also, be sure to mow at the proper height for your grass type.
5 Methods of Controlling Weeds
There are 5 different methods for controlling weeds in lawns, including:

1. Chemical Herbicides
Herbicides are chemicals that are specifically designed to kill weeds. They come in various forms, including liquids, granules, and sprayable formulations.
Herbicides can be selective, meaning they only target certain types of weeds, or non-selective, meaning they will kill any plant they come into contact with. It’s important to read and follow all label instructions and safety precautions when using herbicides.
2. Physical Removal
Hand-weeding is a simple and effective way to remove weeds from your lawn. It’s important to remove the entire weed, including the roots, to prevent it from regrowing.
3. Mulching
Mulching around plants can help suppress weeds by blocking sunlight and preventing weed seeds from germinating.
4. Soil Solarization
Solarization involves covering a weed-infested area with a clear plastic sheet and allowing the sun’s rays to heat the soil, which can kill weeds and weed seeds. This technique works best in areas with long periods of hot, sunny weather.
5. Biological Control
In some cases, natural predators or pathogens can be used to control certain types of weeds. For example, some plants have insect pests that feed exclusively on them, and these insects can be used to control the weed population.
It’s important to choose the right method for your situation and to follow all label instructions and safety precautions when using chemicals. A combination of different techniques may be necessary to effectively control weeds in your lawn.
When to Apply Fertilizer and Weed Killer?
The timing of when to apply fertilizer and weed killer can vary depending on the specific products you are using and the specific needs of your lawn or garden.

Here are a few general guidelines to follow:
Fertilizer
- Spring is typically the best time to apply fertilizer to your lawn, as the grass is starting to actively grow and will benefit from the nutrients provided by the fertilizer.
- Apply fertilizer to established grass in the lawn in the early spring, as soon as the soil can be worked. This will give the plants a boost of nutrients to help them grow strong and healthy.
- It’s generally not recommended to apply fertilizer to newly planted grass or seedlings, as the high levels of nitrogen in most fertilizers can inhibit germination and encourage leafy growth at the expense of root development.
Weed Killer
- The best time to apply weed killer is when the weeds are actively growing, as this will allow the product to be absorbed by the plants and be most effective.
- In most cases, this will mean applying weed killer in the spring or early summer, when the weather is warm and sunny and the weeds are starting to grow vigorously.
- If you have perennial weeds, such as dandelions or thistle, it’s often best to apply weed killer in the fall, as this will allow the product to reach the roots of the weeds and help prevent them from regrowing in the spring.
- Be sure to read the instructions on the weed killer you are using, as different products may have different application instructions and may be more or less effective at different times of the year.
It’s also important to note that both fertilizer and weed killer can have unintended consequences if not used properly. Be sure to follow the instructions on the product labels and consider consulting with a local lawn expert or a horticulturalist if you have any questions or concerns.
Can You Mix Weed and Feed with Fertilizer?
It is generally not recommended to mix weed and feed products with other fertilizers, as this can result in over-application of the herbicides and potentially harm your lawn or garden.
Weed and feed products are lawn fertilizers that contain herbicides (weed killers) in addition to the nutrients that are typically found in fertilizers.

Here are a few reasons why you should not mix weed and feed with fertilizer:
1. Over Application of Herbicides
Most weed and feed products are designed to be applied at specific rates to achieve the desired level of weed control.
Mixing the product with other fertilizers can result in an over-application of the herbicides, which can be harmful to your lawn or garden.
2. Incompatibility of Ingredients
Different fertilizers and weed killers can contain different ingredients that may not be compatible with each other. Mixing these products can result in reduced effectiveness or even negative effects on your lawn or garden.
3. Lack of Control
By mixing weed and feed with other fertilizers, you lose control over the specific ratios of nutrients and herbicides being applied to your lawn or garden.
This can make it difficult to achieve the desired results and may lead to unintended consequences.
If you want to apply both weed control and fertilization to your lawn or garden, it’s generally best to use separate products for each. This will allow you to control the specific amounts of each product being applied and avoid any potential negative effects from mixing the products.
Should I fertilize or kill the weed first?
The answer to this question will depend on the specific needs of your lawn or garden and the products you are using.
Here are a few general guidelines to follow:
- If your lawn or garden has a significant number of weeds and the main goal is to control the weeds, it’s generally best to apply a weed killer first and then fertilize once the weeds have been controlled.This will allow the weeds to be effectively eliminated before fertilization can encourage their growth.
- If your lawn or garden is relatively weed-free but could benefit from fertilization, it’s generally best to apply the fertilizer first and then follow up with a weed killer if necessary.This will allow the fertilizer to be absorbed by the plants and help them grow strong and healthy before the weed killer is applied.
- If you are using a weed and feed product that combines both fertilization and weed control, be sure to follow the instructions on the product label for the best results. These products are designed to be applied at specific rates to achieve the desired level of weed control and fertilization, and mixing them with other products can result in over-application or reduced effectiveness.
It’s also important to note that both fertilization and weed control can have unintended consequences if not used properly. Be sure to read the instructions on the product labels and consider consulting with a local gardening expert or a horticulturalist if you have any questions or concerns.
Conclusion
When fertilizing your lawn, it’s important to use the right type of fertilizer for your grass type and to apply it at the correct time of year. Weed control is also an important aspect of lawn care, as weeds can compete with grass for water, nutrients, and sunlight.
There are several different methods for controlling weeds in lawns, including chemical herbicides, physical removal, proper mowing and watering. It’s important to choose the right method for your situation, and to follow all label instructions and safety precautions when using chemicals.
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