Cactus and succulents make fantastic terrarium plants because they are durable, long lived and easy to care for. They also have such a great look! Just so exotic and varied. There are lots you can choose from and amazon has lots of them that you can get in a jiffy. And I have a tutorial on how to make a desert terrarium if you want some help. I use a bunch of different cacti and succulents. Fun project. It is right here: How to make a desert terrarium It also includes a video.

These types of plants often make excellent subjects for terrariums because they are hardy, don't grow very large and are easy to take care of. You just have to follow the rules for the type of plant and this might include amount of sunlight and type of soil.

Complete Book of Cacti & Succulents

Need some Cactus Plants? Amazon.com has them.

20 Gorgeous Succulents in 2" Plastic Pots

• No two are alike
• Your plants will be mailed in their 2 inch pots with soil.
• Fully rooted with many ready to be put into larger pots or arrangements
• Varieties will vary depending of availability and season
• Collection of 20 succulents each of a different species

Instant Cactus/Succulent Collection - 8 Plants 1

• You will get an assortment, 8 different species of Cacti & Succulents growing in 2" pots. The varieties you will receive vary with the season.

36 Mixed Succulent Spring Collection

If you are going to make a serious terrarium with lots of plants, or if you are going to make a bunch of terrariums this selection might be a nice choice for you. I love this picture. They are just so adorable.

9 Misc Sempervivum Hens N Chicks 2" Pots

Cactus & Succulent Garden - 3" Clay Pot

36 Cactus Misc 2inch Potted Cactus Collection

H Potter Wardian Case Terrarium Container

• H Potter Plant Terrarium makes a great gift. Great size for small places. Entire glass terrarium container top lifts off and includes brass filagree trim and brass finials. Perfect indoor planter for the office desk or an apartment. Approximate Dimensions: 9.5"L x 5.5"W x 10.5"H
• Terrarium Glass is 3 mm thick and has lead-free solder to protect you and the environment. Front center roof panel is hinged to open for ventilation.

Cactus plants come and go, but there is always a great selection on amazon: Cactus Plants on Amazon.com