Collections Etc Desert Oasis Glass Double Terrarium, Green Grow your own aloe plant and wild-west cacti! These elegant plants are easy to grow and require very little care once they've sprouted. Kit includes everything you need to start your own tiny desert oasis, including a "double-bubble" glass terrarium, 2 packets of seeds, germination disk, natural sand, and instructions. Just add water! Ages 14+. Approx. 6.5" x 5" x 4".