Medium Oya

By GrowOya

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This porous terracotta vessel waters plants naturally and efficiently, right at their roots. With the Oya, the water doesn’t run off or evaporate like it does when you water at the surface. Simply plant the Oya in the ground and fill with water every few days. Your plants get exactly what they need and you save water and time.

  • Material: Terracotta
  • Care: Remove from soil before the ground freezes. Rinse with water
  • Saves time: Water only every few days
  • Saves water: Surface water is inefficient. Watering slowly at the roots produces a water saving up to 50-70%
  • Higher yield: Well-watered plants produce more flowers and more food
  • Plant 36" apart, coverage area of up to 3'
  • Comes with silicone lid to keep evaporation in and critters out (mosquitos, lizards, and other insects)
  • Medium Oya is great for planter boxes, small raised beds, and larger containers. A 6’ x 3’ raised bed is perfect with 2 medium Oyas
  • Sizing Chart
  • Made in China
  • Dimensions: 7" x 10"
  • Weight: 4 lbs.
  • Fluid Capacity: 101 fl. oz.

7 Reviews (3 out of 5 Grommets)

Sorted by Rating

Best Garden Gadget


I bought two of these for a 3 foot by 6 foot raised bed where I planted my tomatoes this year. My tomatoes have been thriving all summer. Where my other plants that rely on my watering regularly look like they are wilting in the summer heat, my tomatoes have been lush, healthy, and never look wilted in the summer sun. I've also had the best yield this year. I will be purchasing more Oya's for my other raised beds next year!More > < Less


Perfect Solution for Water Conservation.


I love my Oyas! I have them in my butterfly garden, my herb and vegetable garden and a flower bed that didn't get enough water from sprinkler. We are in a drought and have water rationing. These are the perfect solution. I believe I will also get better results in my garden because of the deep watering.More > < Less


Love the concept but...


I purchase a lot of these in various sizes as per stated for the area and I found that it really doesn't hold enough water for 5 days. In a pot on my porch.More > < Less


It's just okay


I doesn't hold water near as long as it claims to. The water has to be replaced every other day or so.


Great concept but....


I fill these up and they last 3 days tops. Not the 5 as described. My plants are happy tho!!

Items 1 to 5 of 7 total

GrowOya - Deep Root Watering Vessel

About GrowOya

Dig This

It can be easy to forget to water plants and we often waste water when we do. GrowOya solves both issues, elegantly.

This terracotta watering system simplifies—and improves—the process of caring for your plants. Simply dig the Oya into the soil (with the spout exposed) and fill it up every few days. Boom . . . you’re done. The Oya and your plants work together to do the rest.

The Oya’s porous terracotta material releases water slowly near the roots, where it's needed. This method saves a LOT of water (up to 70%) because it reduces runoff and evaporation. Put one or more pots in places that the hose or sprinklers can’t reach. Or use them anywhere and everywhere for effective, efficient watering.

Founder Josh McWilliams wanted to water his rooftop garden sustainably. So when he discovered the “olla” (pronounced ‘oya’), an ancient way of gardening with terracotta pots, he saw a chance to change the way people care for their gardens today. Fellow Founders Kenny Torrance and Brant Cheetham joined and GrowOya was born.

With the time-honored wisdom of the Oya, you’ll save time, save water, and grow happier plants.