What Kills Weeds But Not Plants: A Guide To Weed Control

Brunnings 800ml Weed Kill Bunnings Warehouse
Brunnings 800ml Weed Kill Bunnings Warehouse from bunnings.com.au

Weeds are a common nuisance for gardeners and homeowners. They compete with desirable plants for water, nutrients, and sunlight, and can quickly take over a garden if left unchecked. While there are various methods for weed control, it is important to choose a solution that effectively kills weeds without harming your plants. In this article, we will explore some effective weed control options available at Bunnings that target weeds while sparing your precious plants.

1. Selective Herbicides

Selective herbicides are chemicals specifically designed to target and kill weeds while leaving other plants unharmed. These herbicides work by targeting specific enzymes or proteins that are unique to weeds, allowing them to effectively kill the unwanted plants without affecting your desired plants. One popular selective herbicide available at Bunnings is Glyphosate. Glyphosate-based herbicides, such as Roundup, are effective against a wide range of common weeds, including bindweed, dandelions, and couch grass.

2. Mulching

Mulching is an effective and natural way to control weeds while also providing additional benefits to your plants. Mulch acts as a barrier, preventing weed seeds from germinating and blocking sunlight from reaching existing weeds, thus inhibiting their growth. Organic mulches, such as straw, wood chips, or compost, not only suppress weeds but also improve soil health and moisture retention. Bunnings offers a variety of mulch options to suit different gardening needs.

3. Hand Pulling

While it may be time-consuming, hand pulling weeds is an effective and targeted method of weed control that ensures your plants remain unharmed. This method is especially useful for removing larger weeds with deep roots that are difficult to control with herbicides alone. Ensure you remove the entire weed, including the roots, to prevent regrowth. To make the process easier, it is recommended to pull weeds after rainfall or watering when the soil is moist and the weeds are easier to remove.

4. Weed Control Fabric

Weed control fabric is a permeable material that is placed over the soil to prevent weed growth. The fabric allows water and nutrients to reach your plants while preventing sunlight from reaching weeds, effectively suppressing their growth. Weed control fabric is particularly useful for areas with heavy weed infestations or in vegetable gardens where you want to prevent weeds from competing with your crops. Bunnings offers a range of weed control fabrics suitable for different garden sizes and applications.

5. Corn Gluten Meal

Corn gluten meal is a natural pre-emergent herbicide that can prevent weed seeds from germinating. It works by inhibiting root development in germinating seeds, effectively suppressing weed growth. Corn gluten meal is safe for use around established plants and can also act as a fertilizer, providing additional nutrients to your plants. Bunnings offers corn gluten meal in both granular and liquid forms, making it easy to apply in your garden.


Controlling weeds without harming your plants can be a challenging task. However, by utilizing the right weed control methods, such as selective herbicides, mulching, hand pulling, weed control fabric, and corn gluten meal, you can effectively tackle weed infestations while protecting your desired plants. Remember to carefully read and follow the instructions on any herbicides or products you choose to use from Bunnings to ensure safe and effective weed control in your garden.

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