10 bestKills Weeds Not Flowersof May 2025
112M consumers helped this year.
36% off
1
Roundup Fast Action Weedkiller Pump 'N Go Ready To Use Spray, 5 Litre
Roundup
9.8
2
Elixir Gardens 360 g/l Glyphosate Commercial Industrial Strength Weed Killer | Treats up to 3332 sq.m | Concentrated Herbicide/Weedkiller | 2 x 1 Litre Bottle + Measuring Cup & Gloves
Elixir Gardens
9.6
11% off
3
Roundup Fast Action Total Weedkiller, 5 Litre Refill
Roundup
9.3
4
Roundup Total Fast Action Weed Killer, 1 Litre
Roundup
9.0
26% off
5
Roundup Fast Action Weedkiller, Ready to Use, Manual Spray, 3 Litre
Roundup
8.7
7% off
6
Resolva Xtra Fast Weedkiller RTU 1L
Resolva
8.4
7
Elixir Gardens 1 Litre 360 g/l Glyphosate Commercial Industrial Strength Weed Killer | Treats up to 1666 sq.m | Concentrated Herbicide/Weedkiller
Elixir Gardens
8.1
12% off
8
Roundup Tough Weedkiller, Concenrate, Makes up to 100 Litres, 1 Litre
Roundup
7.8
9
Rootblast | Super Strength Concentrated Total Weed Killer - Super Strength Glyphosate for Effective Weed Control - Kills Weeds down to the their roots (1 x 500ml), Packaging May Vary
Rootblast
7.5
10
envii Algae Klear Xtra – Blanket Weed Treatment for Ponds, Removes Blanket weed & String Algae Working All Year Round, Safe for all Fish & Plants – 1L Treats 20,000 litres
envii
7.2
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A Guide to Selecting the Best Kills Weeds Not Flowers
Choosing the right weed killer can be a bit tricky, especially if you want to ensure that your flowers and other desirable plants remain unharmed. The key is to understand the different types of weed killers available and their specific features. By focusing on the right specifications, you can find a product that effectively targets weeds while preserving the beauty of your garden.
Selective vs. Non-Selective
Selective weed killers are designed to target specific types of weeds without harming other plants, making them ideal for use in flower beds and lawns. Non-selective weed killers, on the other hand, will kill any plant they come into contact with, which is useful for clearing areas completely but not suitable for use around flowers. If you want to protect your flowers, opt for a selective weed killer.
Systemic vs. Contact
Systemic weed killers are absorbed by the plant and travel through its system to kill it from the inside out, which is effective for perennial weeds with deep roots. Contact weed killers only affect the parts of the plant they touch, making them better for annual weeds or surface-level issues. If your garden has deep-rooted weeds, a systemic option might be more effective, but for surface weeds, a contact weed killer will suffice.
Pre-emergent vs. Post-emergent
Pre-emergent weed killers prevent weeds from germinating and are best used before weeds appear. Post-emergent weed killers target weeds that have already sprouted. If you are dealing with existing weeds, a post-emergent product is necessary. For preventative measures, especially in flower beds, a pre-emergent weed killer can help keep weeds at bay.
Application Method
Weed killers come in various forms, including sprays, granules, and concentrates. Sprays are easy to apply and can target specific areas, while granules are spread over a larger area and are activated by water. Concentrates need to be mixed with water and can be customized for different levels of weed control. Consider the size of your garden and the ease of application when choosing the method that works best for you.
Active Ingredients
The active ingredients in weed killers determine their effectiveness and safety. Common ingredients include glyphosate, 2,4-D, and dicamba. Glyphosate is non-selective and very effective but must be used carefully around flowers. 2,4-D and dicamba are selective and target broadleaf weeds, making them safer for use in flower beds. Check the label for active ingredients to ensure they match your needs.
Environmental Impact
Some weed killers can have a significant impact on the environment, affecting soil health and water sources. Organic and natural weed killers are less harmful and can be a better choice for eco-conscious gardeners. If environmental impact is a concern, look for products labeled as organic or biodegradable.
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