Burro’s Tail

All things considered, donkey's tail succulents grow easily if you follow a few simple rules. Like most succulents, they do well if left slightly neglected—if you forget to water them once or twice, they'll still be just fine. In fact, overwatering is the worst thing you can do to a donkey's tail. Where you really have to treat your donkey's tail with care is while handling it. Its eye-catching pointed leaves covering draping stems are actually extremely fragile and can break off with even the slightest touch. For that reason, it's best to choose a sunny spot to place or hang your donkey's tail succulent and then, quite literally, forget about it.
Light
As with many succulents, donkey's tail thrives best with lots of warm sunlight, though it will tolerate a partial shade location. If you're choosing to house your plant indoors, opt for a sunny windowsill that boasts several hours of daily light. If you're growing your succulent outdoors, place it in a pot or spot in your garden that gets plenty of morning sunlight but is partially shaded during the more aggressive afternoon hours to avoid scorching its leaves.
Water
When it comes to watering your donkey's tail succulent, less is more. Like many succulents, donkey's tail is drought resistant once established, so you'll want to water it more frequently during its spring and summer growing season, then taper off throughout the fall and winter months. Generally, opt for a single heavy watering each month if your plant is indoors, increasing to once every two or three weeks if you're housing your succulent outdoors. A good rule of thumb: The soil of your succulent should dry out completely in-between waterings. Check the soil with your finger to make sure the soil is dry at least an inch down before watering the plant.