Light. Your cactus may lean even if its planted in full sun because plants naturally grow towards the sunlight. … However, if you planted your cactus in partial shade and now it started to lean, this can mean it needs more sunlight. Other signs you can notice are weak, flimsy, yellowish stems that look sick.

Will cactus grow towards light?

Growing Toward the Sunlight Even if your cactus is planted in full sun, it may lean. Plants naturally grow toward the sunlight. The barrel cactus grows southward toward the sun so much that it practically lies over on one side. If the cactus is otherwise healthy, this is not a danger.

Why is my cactus leaning away from the sun?

Some of the most common causes of a leaning cactus are inadequate sunlight, overwatering, rot, and pests. In general, cacti are a busy gardener’s dream. They’re pretty low maintenance, and as long as you water them from time to time, you probably won’t need to spare a thought for them.