How to Use Cinnamon in the Garden and for Plants

Cinnamon is not just a spice for your kitchen; it’s a versatile tool for gardeners. Here are several reasons why and how you can use it:


1. Rooting Agent

Cinnamon can stimulate root development in plants. Apply it to the stem ends of plant cuttings before planting. This encourages new growth and is an effective alternative to hormone rooting powders.

2. Fungicide

Cinnamon helps prevent and treat fungal diseases, such as damping off disease in seedlings and other fungal infections. Mix cinnamon into water, let it steep, strain, and use as a spray for affected plant parts.

3. Ant Deterrent

Sprinkling cinnamon can deter ants and other small pests by creating a barrier they avoid. It’s effective both indoors and outdoors.

4. Mushroom Control

Adding cinnamon to garden mulch can help deter unwanted mushroom growth, especially around other plants.

5. Prevents Rust

Cinnamon can discourage soil-borne rust disease in plants like calendula. Sprinkle it in the soil when planting as a preventive measure.

6. Heals Plant Wounds

Cinnamon can be applied to fresh plant wounds caused by pruning or accidental damage, helping in healing and preventing fungal infections.

cinnamon stick on a tree branch

7. Furry Pest Deterrent

Cinnamon’s strong scent confuses the scent instincts of rodents like mice, rabbits, and squirrels, making it a useful repellent around the garden perimeter.

8. Protect Seedlings

Mixing cinnamon into seed starting mix can prevent issues like damping off and control fruit fly populations and potential fungus.

9. Rooting and Grafting Agent

Cinnamon can protect grafts from fungal diseases during the rooting process. Dredge damp stems in cinnamon powder before planting.

10. Treats Ant Infestations

In addition to deterring ants, cinnamon can be used directly on ant mounds in the garden, helping control overpopulation of these insects.

11. Large Predator Deterrent

Cinnamon irritates the mucus membranes of larger pests, such as squirrels and rats, making it an effective perimeter treatment to keep them away from plants.

Cinnamon is more than a culinary spice; it’s a powerful ally in the garden. Its antifungal properties, ability to stimulate root growth, and effectiveness as a natural pest deterrent make it an indispensable tool for gardeners looking for organic solutions. Whether you’re dealing with pests, fungi, or plant wounds, cinnamon is a versatile, eco-friendly option to keep your plants healthy and thriving.

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