Concrete skull planter hand-poured, perfect for small succulents or cacti. While succulents are not dependent on water, they require plenty of sun to thrive. When they grow up and need more space, it is best to transplant them around the beginning of spring. We'll talk more about this in a bit. Have you enjoyed learning more about succulents? Are you now inspired to expand your collection? A good tip for reducing water absorption is to add gravel to the bottom of your succulents to help with drainage.