There are a few reasons why your Christmas cactus leaves have turned red. Excessive light, typically when it receives too much direct sunlight, can turn the leaves of a Christmas cactus a reddish color. It does best when placed in a location that receives bright, indirect light.
Other reasons for red leaves are a lack of water, magnesium deficiency, or your plant is too root bound. Christmas cactus like to be root bound, but should be repotted every 3 or 4 years. A sign that it needs to be repotted is if roots grow out of the drainage holes at the bottom of your container.
Hi Mary,
There are a few reasons why your Christmas cactus leaves have turned red. Excessive light, typically when it receives too much direct sunlight, can turn the leaves of a Christmas cactus a reddish color. It does best when placed in a location that receives bright, indirect light.
Other reasons for red leaves are a lack of water, magnesium deficiency, or your plant is too root bound. Christmas cactus like to be root bound, but should be repotted every 3 or 4 years. A sign that it needs to be repotted is if roots grow out of the drainage holes at the bottom of your container.