- Is there a difference between nettle manure and nettle stock?
- What is needed for the brew?
- Which parts of the nettle are suitable for the brew?
- Production of natural fertilizer
- How is the natural fertilizer applied?
- Nettle decoction made from nettle powder
Brennesselsud is used in ornamental and vegetable gardens to strengthen plants and as an ecologically effective agent against pests. The attachment is very uncomplicated and the amount of work is kept within manageable limits. In the following instructions we will explain how you can prepare the brew yourself and how it is applied.

Is there a difference between nettle manure and nettle stock?
Depending on the fermentation time, a distinction is made between nettle manure and nettle broth. Both variants are nettle brews. While liquid manure has to ferment for about two weeks, the broth is ready to use after just one day. This is a great advantage if you need to take quick action against pests such as aphids, for example.
What is needed for the brew?
Little effort, big effect: The utensils you need for the production can be found in almost every garden:
- garden gloves,
- sharp knife or scissors,
- plastic bucket or vat,
- stirring stick.
Since chemical processes take place between the metal and the liquid, metal vessels are not suitable.
The actual brew consists of:
- 1 kg nettles,
- 10 liters of water.
Which parts of the nettle are suitable for the brew?
In our latitudes, two types of stinging nettle, the large and the small stinging nettle, are widespread. Both are equally suitable for preparing a brew. You can use all parts of the plant, with the exception of the flowers.
Production of natural fertilizer
- Shred the nettles with secateurs and place in the bucket.
- Add 10 liters of cold water, preferably rainwater.
- Cover the jar with a grid and place in the sun.
- You can apply nettle broth after 24 hours.
- Nettle manure has to ferment for about two weeks until no more bubbles appear. During this time, it is stirred daily.
How is the natural fertilizer applied?
Nettle manure should always be diluted. The following applies here: Older plants tolerate the brew more concentrated than younger ones.
- For large plants, add ten parts of water to the liquid manure.
- Fertilize young plants with a mixture of one part liquid manure and 20 parts water.
- The lawn is also grateful for a fertilizer with the nettle broth. Dilute the liquid manure with 50 parts water and use it to water the green area.
Nettle broth is not as aggressive as liquid manure, which you can tell from the smell, among other things. It is still strong enough to repel pests, but is gentle on sensitive plants like roses. You can pour broth undiluted into a watering can and water the plants with the tonic.
You can use a sprayer to control pests. To prevent the fine nozzles from clogging, you should pour both the diluted manure and the broth through a tea strainer placed over a funnel (€5.00).
Nettle decoction made from nettle powder
You can buy stinging nettles powdered or shaped into pellets from garden supply stores. This variant is particularly recommended if you don't need a lot of brew or have no way of collecting it yourself.
tips
If you put the nettles in a net, the parts of the plant can be easily removed after fermentation. The brew does not have to be poured through a sieve and you can use it straight away.