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Cinnamon for Plants: Can It Be Used as a Natural Fungicide for Plants?

Using cinnamon as an antifungal for plants is an old wives’ tale I’ve heard about for years. Like magical fairy dust, gardeners sprinkle cinnamon into their potting soil to help their seedlings. I wanted to know how much truth there was to this claim, so I did some research. Here I came to know about the uses of cinnamon for plants.

Uses of Cinnamon for Plants

If there were a popularity contest for best spice, cinnamon would be in the running. It reminds me of Christmas, delicious baked goods, and a woody but spicy look as a cleaning ingredient.

Based on the aroma alone, cinnamon holds a special place in my heart. But it also has immense health and cleansing properties.

It is a proven fact that Cinnamon has antibacterial and antifungal properties, Many studies have shown cinnamon to be a powerhouse spice for human health, but how much does it help plants?

Many gardeners have used cinnamon as a natural fungicide for plants. There is plenty of anecdotal evidence to suggest that cinnamon is a great antifungal agent for plants, but let’s delve a little deeper into the effects of cinnamon in the garden.

This post will cover…

What does cinnamon do for plants? the myth in question

When it comes to cinnamon, there are some claims about its benefits for the garden.

Perhaps best of all, cinnamon is a natural fungicide for plants. You can use it as a spray to help prevent fungal disease, especially for damping off. When planting plants, people will sprinkle cinnamon in their potting soil.

Another common way to do it Cinnamon is used as a rooting hormone for plants. People will use it with honey when they take cuttings to encourage root growth. They coat the ends of the plants in cinnamon powder.

Ultimately, people too Use cinnamon as an ant repellent. They will sprinkle it in the garden or as a border to prevent it from entering the house.

Now, let’s see how true all these cinnamon claims are!

What is cinnamon?

This may seem like a simple question, but there is more to the cinnamon you find at the grocery store than you might think.

Cinnamon is a spice obtained from its inner bark. Cinnamon trees. It has more than 300 species cinnamon The genus, and a handful of them are used to make cinnamon.

To collect cinnamon, they cut the trunk and branches from the tree and then remove the inner bark into strips. Once dried, it is twisted and rolled and transformed into the cinnamon sticks that we get at the store. Then, those woods can be ground into powder.

Cinnamon powder is obtained by grinding cinnamon sticks.

Different Types of Cinnamon

You’ll want to be aware of the two main types of cinnamon. Ceylon (also known as Sri Lankan) cinnamon It is known as “real cinnamon” and is only available in specialty stores. it comes from cinnamomum verum Tree. Real cinnamon is more aromatic and has a light brown color. It tastes slightly sweet, although most consumers cannot tell the difference.

The second type of cinnamon is called cassia or Chinese cinnamon, called “fake” cinnamon. is made of Cinnamomum aromaticum Tree. This is what you find for sale at the grocery store and is much cheaper. It has hard, deep and thick rolls.

These also include some other cinnamon you may find for sale C. burmannii, C. loureiroi, C. citriodorum, and C. tamale, These are also considered “fake” cinnamon varieties.

Now, the problem with all these different types of cinnamon is that they are all called cinnamon! It can be confusing when reading about all the different benefits of cinnamon. They are not all equal in their benefits and uses.

Cinnamon can also refer to the plant, powder, essential oil, or extract. These can be important differences when using cinnamon for plants.

cinnamon sticks for plants
Many types of cinnamon can be found at the grocery store known as “fake” cinnamon.

Antifungal Properties of Cinnamon

Cinnamon’s distinctive odor and flavor come from the plant’s oil. plant derivatives, Cinnamaldehyde, cinnamic acid and cinnamate give it powerful health properties. Cinnamaldehyde is definitely extraordinary.

many studies Antifungal and antimicrobial properties of cinnamon have been proven for humans. It can kill fungi that cause respiratory tract infections and prevent the growth of bacteria that cause other types of infections, including Listeria and Salmonella. even it is anti-cancer properties,

There are fewer studies on cinnamon as a natural fungicide for plants, but There is still good evidence to support that these antifungal properties also work in the garden.

One Study Of 49 essential oils tested against gray mold (Botrytis cinerea), cinnamon leaf was the strongest antifungal. It has also been proven to have antifungal activity against other fungal diseases such as powdery mildew (oidium murayae) And Colletotrichum gloeosporioides,

damping off fungal disease close up
Damping off is a horticultural disease caused by a fungus or fungus that usually affects young shoots.

Does cinnamon work in the garden?

It would be easy to suggest that all these studies prove that cinnamon’s antifungal properties will translate like magic into the garden.

the only problem is These studies were in controlled environments and conducted very differently than home gardeners., Studies may use a specific type of cinnamon in the form of an extract, which can be tested in in vitro tests (in a test tube). Meanwhile, you’re using a cinnamon that comes from a different plant in powder form in a spray bottle. It’s not the same thing!

The reality is that most of these studies are not studying the powders you get at the grocery store. Often, they are more expensive cinnamon in oil form.

Does this mean that cinnamon powder won’t work in your garden? No. Does that mean it will work? Perhaps. It’s definitely worth exploring and is likely to have some impact on your garden. Just don’t expect it to be the miracle antifungal the internet may recommend!

If you’re looking for a natural fungicide for plants, I recommend making chamomile fungicide as a base and adding some cinnamon. This way, you’ll be doubling your efforts with two potentially powerful antifungal ingredients.

studies Cinnamon oil has been shown to be effective in killing mosquito larvae, controlling thrips and bean weevils. it is Strong ability as insect repellent, And I can see it being a great ingredient for my natural pest control spray.

How to Prevent Damping Off and Other Fungal Issues

I also like to remind people that It’s not about treating fungal problems but about preventing them from occurring in the first place. This is a much more effective strategy.

Here are some tips to prevent fungal diseases.

sterile material

Use sterile materials that will not stimulate fungal or bacterial growth. Most soil components, except compost, do not contain active biology. If you want to use compost indoors, you will need to cook the moist soil in the sun or in the oven at 180° F for at least 30 minutes. Store any leftover compost in an airtight container for future indoor and seed-starting potting mix.

water properly

Avoid overhead watering, Instead, concentrate the water at the base of the plant, where it will soak into the soil and roots rather than wetting the leaves. Too, water early in the day So excess moisture will evaporate in the subsequent sunlight instead of sitting overnight.


trying to do Place plants in their ideal positions as much as possible. Although you may want to place some beautiful annuals in a shady spot rather than full sun, don’t feel obligated to do so. The reality is that the area may be too moist for them and encourage fungal growth.

Too, Do not crowd the plants. Give them the right spacing requirements to promote air flow. Air circulation is essential to prevent fungal growth.

peonies in the sun
Proper sunlight exposure is one of the best ways to prevent gardening disease.

FAQs About Cinnamon for Plants

How often should you use cinnamon on plants?

It is best to add cinnamon powder or oil to the pot soil before sowing the seeds.

If you are diluting the cinnamon, like you add it to my chamomile fungicide spray, you can spray it daily when watering your seedlings or spray your established plants and soil as often as daily.

Will cinnamon harm plants?

Cinnamon oil in high concentrations may affect plant growth. The use of cinnamon oil could be a potential natural herbicide. However, this is only in high concentrations, and normal use of cinnamon should not affect plant growth, but there have been few studies on this. I always recommend testing it in your garden before using it everywhere.

Can cinnamon act as a rooting agent?

I found no evidence to suggest that cinnamon works as a rooting agent. You can use it in water to prevent bacteria from growing, which may aid the root growth process, but it will not encourage it. Try adding a drop or two of cinnamon essential oil along with my Willow Water Rooting Hormone.

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