The Plant You Should Grow In Your Garden For Healthy Soil

The Plant You Should Grow In Your Garden For Healthy Soil

Whether you’re an experienced gardener or a beginner, you know that the health of your soil is crucial for a good harvest. Most gardeners spend a significant amount of time and money selecting, purchasing, and applying commercial fertilizers to their plants. However, many of these fertilizers are made from highly concentrated synthetic mineral blends that can harm your plants if too much is applied.

Organic fertilizers are made from natural sources like bone meal, blood meal, or even sewage sludge. They are easier on your plants but come at a higher price. Also, if you’re particularly sensitive, their ingredients might not be the easiest for you to work with. Fortunately, there is a natural and easy way to make your effective soil fertilizer without risking damage to your plants, your wallet, or your dignity: comfrey plants. This uniquely nutrient-dense plant can improve the health of your soil and the quality of all the other plants in your garden.

What is comfrey?


Arndt_vladimir/Getty Images

Comfrey, also known as Symphytum officinale, is a flowering perennial that was once used for its medicinal properties. Unfortunately, over time, it became clear that ingesting the plant can cause liver damage, lung damage, or even cancer. While some people continue to use comfrey topically to treat bruises and inflammation, Mount Sinai warns that its harmful compounds are capable of passing through the skin and entering the bloodstream. Luckily, anti-inflammatory properties aren’t this plant’s only special feature.

In addition to containing key nutrients such as phosphorus and potassium, comfrey holds the highest percentage of protein of any plant. Protein content is directly correlated with nitrogen content. It is also the only plant that is a source of vitamin B-12. Comfrey gets its supercharged nutrient content by tapping into deep layers of soil that other plants can’t reach. It accomplishes this thanks to its roots, which grow to an astounding length of 10 feet or longer.

How to make comfrey fertilizer

Woman gardens

Dejan_dundjerski/Getty Images

Utilizing the high level of all three essential plant nutrients found in comfrey — along with its impressive list of macronutrients — to fertilize your garden is surprisingly simple. For the most effective application, just cover 1 quart of comfrey leaves with 4 gallons of water in a large covered container. You want the container to be covered because the fermentation process can get quite odorous, leaving behind a pungent smell. Allow the mixture to steep for 10 to 30 days, and then apply it to the base of your plants.

You can also pulse the leaves in your blender with hot water to make a quicker version of comfrey fertilizer. Add both the liquid and the leaf chunks to your plants’ bases. If you’d like to keep it as simple and as natural as possible, you can also chop up the leaves from your comfrey plants and spread them across your dirt. Over time, the leaves will decay, and their nutrients will sink into the soil below.

✿ Read More About Flowers.

Dr Heidi Parkes

By Dr Heidi Parkes

Senior Information Extension Officer QLD Dept of Agriculture & Fisheries.