The Ariana planter waters when your not looking and helps keep your plants from drying out. Here's how: Inside the planter, at the bottom, is a hidden reservoir that holds approximately. 1 in. - 3.5 in. water (depending on planter size). This self-watering insert keeps dirt and roots above the hidden reservoir line while constantly providing healthy greenhouse-like moisture through the evaporation process. If your just not home very often, self-watering containers are a must-have. Highlights: Self-watering disk for optimal soil moisture Optional drainage hole feature Ideal for indoor and outdoor use UV-resistant material Specifications: Features: Round (shape) Number of Pieces: 1 Dimensions (Overall): 8.5 inches (H) x 11 inches (W) x 10 inches (D) Weight: .52 pounds Placement: Ground Freestanding Indoor/Outdoor: Outdoor Assembly Details: No Assembly Required Drainage : Multiple Drainage Holes Includes: 1 Planter Pot Material: Plastic