They thrive in rich, moisture-retentive soil, while spreading more slowly in dry or poor soil. Because most roots are in the top 20cm of soil, digging them up can unintentionally spread them if fragments are left behind.
For nettles growing among desirable plants or grass, use a selective weed killer. These products target nettles while leaving the surrounding grass unharmed. SBK Brushwood Killer is ideal for this purpose.
2. Total Weed Killers
Using a glyphosate weed killer such as Gallup Home and Garden is also a great option for controlling nettles. This is only advised, however, if you are not concerned about surrounding plants and grasses, as it will control any plant that it touches. If you are using this method, we would also recommend mixing with an adjuvant called Validate. This helps the product to penetrate the nettle’s leaves and achieve maximum efficacy of the weed killer.
3. Timing and Technique
The best time to treat nettles is when they are young and actively growing, usually around 15–20cm tall. If you’ve missed this stage, cut them back first and treat the regrowth. Avoid chopping or digging up large sections, as this can spread them via root fragments.
Are stinging nettles alive in the winter?
Yes, nettles survive the winter as dormant rhizomes and root fragments. Whilst the above-ground shoots will die back, the root system remains alive under the soil, ready to regrow in the spring. Nettles may grow slowly if the winter is milder, especially in areas with rich soil that retains water well. Nettles surviving the winter means that gaining control in early spring is crucial to prevent rapid re-establishment of the plant.
Whilst the growth is limited, nettles can still grow in the winter. You can treat any new shoots that have emerged with selective weed killers, once soil conditions allow for it. Cutting them down during the winter without treatment is usually ineffective, as the roots will remain alive below the ground.
Whilst nettles can be a nuisance in the garden, there are benefits to having some nettles around.
Nettles provide food and shelter for butterflies, moths, and birds such as bullfinches, reed buntings, and siskins.How do I get rid of nettles
Use a selective weed killer for areas with grass or desirable plants, or glyphosate for complete removal. Treat young plants for the best results.
Are stinging nettles alive in the winter?
Yes, the underground roots and rhizomes survive winter, ready to regrow in spring.
Do nettles grow in the winter?
Growth is minimal, but any new shoots emerging during mild spells can be treated with weed killers.
Why are stinging nettles a problem?
They spread rapidly, can take over lawns and borders, and their stinging hairs can irritate skin.
Can nettles be beneficial to the garden?
Yes — they support butterflies, moths, and birds, and young shoots can be used for soup, tea, or fertiliser.
