Cinnamon as a rooting agent and growth stimulant
Depending on the species, cinnamon can also be used to propagate cuttings. Apply a little ground cinnamon to the bottom of the cutting. This should accelerate the repair of the wound and stimulate root formation. In combination, these effects make cinnamon a great alternative to rooting hormones, which are, for various reasons, prohibited.
But be careful. Scientific studies indicate that cinnamon can inhibit the growth of certain plants, like tomatoes and garden cress. You should also be careful not to cause unintended negative effects on your plants while using cinnamon in the garden.