Bloem AP1612 Ariana Planter with Water Grid Insert, 16", Union Red ARIANA COLLECTION by Bloem: The planter waters plants when you?re 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 approx. 1 inch to 3.5 inches of water (depending on planter size). The self-watering insert keeps dirt and roots above the hidden reservoir line while constantly providing healthy ?greenhouse-like? moisture through the evaporation process. If you?re forgetful, or you?re just not home very often, self-watering containers are a must-have. They?re also helpful if you?re growing in an area that?s not convenient to a water spigot, such as a balcony. How a self-watering planter works: the potting mix is held above the water line by a sturdy screen. The water chamber is connected by small porous channels filled with soil, which then acts as a water wick. As water is used by the plant or evaporates from the surface of the soil, capillary action draws more water up from base of planter. 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. Capacity: 6 Gallons / Size: 17.75 in. Top width x 9 in. Bottom width x 13.75 in. Height Constructed of high-quality durable plastic resin. Maintenance free and easy to clean. UV-protected for fade resistance. Sealed bottom to prevent leakage indoors. Optional knock-out drainage holes when used outdoors. 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. Includes 1 - Bloem Ariana Plastic Round Self Watering Planter Safe for growing fruits, vegetables and herbs (plastic code 2 5). Features Capacity: 6 Gallons / Size: 17.75 in. Top width x 9 in. Bottom width x 13.75 in. Height 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. Sealed bottom to prevent leakage indoors. Optional knock-out drainage holes when used outdoors. Constructed of high-quality durable plastic resin. Maintenance free and easy to clean. UV-protected for fade resistance. Proudly made in USA. USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.