Cleistocactus colademononis 10.5/12.5 - TRAY 15xTray of 15x Cleistocactus colademononis in 10. 5cm diameter pot. The Cleistocactus colademononis or Monkey tail cactus is a fast growing Lithophyte with curling tail like stems which are white gingery and really as soft as they look, making it the loveliest cacti to work with and have in your home. If that wasn't enough it also has a flourish of pink flowers in early summer. Larger pot size (over 12cm) will feature multiple stem, smaller pot size will