These beautiful plants make wonderful additions to vertical succulent gardens and fairy gardens. It doesn't matter if you are building a fairy or living picture frame garden, or just don't have enough space, there are plenty of options for small succulents. It can be very expensive to purchase enough succulents to fill your entire yard. However, propagating plants is an affordable way to grow large gardens. Cacti and succulents come in many sizes and shapes, making them ideal plants for any garden. Because they come from dry, hot environments, succulents can hold large amounts of water.