Ariana Collection by Bloem: The Ariana planter waters when youre not looking and helps keep your plants from drying out. Heres how: Inside the planter, at the bottom, is a hidden reservoir that holds approx. 1"3.5" 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 youre forgetful, or youre just not home very often, self-watering containers are a must-have. Theyre also helpful if youre growing in an area thats not convenient to a water spigot, such as a balcony.How a Self-Watering Planter Works: Inside Bloem's self-watering planter, the potting mix is held above the water line by a sturdy screen. The water chamber is connected by small porous channel filled with soil, which then acts as a wick. As water is used by the plant or evaporates from the surface of the soil, capillary action draws more water up from below. The soil has just the right amount of water all the time, but also maintains air pockets, which the plant roots need to stay healthy. Features• Self-watering disk included• The disk helps to store reserved water, which can be used up by the plants at a later time• Plant will absorb water when needed• Use indoors or outdoors• Optional punch-out drainage holes• UV-stabilized and BPA-free plasic• This planter is crafted from stain- and fade-resistant plastic for virtually maintenance-free performance• Includes 1 - Bloem Ariana Self Watering Planter 20" Charcoal• FDA approved resin for contact with edibles and food (plastic code 2 & 5)Specifications• Color: Charcoal• Size: 20 in.• Capacity: 11 gal• Country of Origin: USA• Dimension: 21.5 in. Top width x 12 in. Bottom width x 17 in. Height• Weight: 5 lbs