Planter Reservoirs & Self Watering Inserts

Add self watering reservoirs to window boxes and garden containers, and ensure your plants are always hydrated just the right amount. In container gardening a planter reservoir is an easy way to cut down on manual work while improving the health of roots. Each insert featured below is its own water conversion kit that turns regular containers into nourishing pots for favorite arrangements.

Make any vessel a self watering planter with reservoir inserts designed to provide the perfect amount of water to root balls while leaving room for soil. A gravity fed capillary is at work between the water volume and soil volume, making each reservoir a well of nutrients for plants to draw on as needed, irrigating for weeks at a time depending on climate and plants used. Buy reservoir inserts online, or call weekdays for assistance choosing the right size for your containers.

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Set Descending Direction

19 Item(s)

Set Descending Direction

19 Item(s)

How to Use Reservoirs in Planters:

Step 1: Place a thin layer of gravel at the bottom of the planter. This will provide emergency drainage in case of over-filling.
Step 2:
Place 1"-2" of soil over the gravel, and then place the reservoir base on the soil base. For very large planters, connect multiple reservoirs with linking units.
Step 3:
Insert the fill tube into the reservoir base and trim so it is 1/2"-1" above the top of the planter.
Step 4:
Fill the planter with soil to the desired level. Tamp it down but do not pack it firmly.
Step 5:
Add plants as usual. You can hide the fill tube if desired, but make sure you can easily pour water into it.
Step 6:
Water the soil thoroughly and add water to the fill tube until the reservoir is full.
Step 7:
As time passes, add water to the fill tube as necessary. Usually, it will take the plants 1-2 weeks to use all the water in the reservoir.
Step 8:
Enjoy your pants as they grow healthy and strong without worry of over- or under-watering!

Different types of reservoirs

DIY Self Watering Planters Made Possible with Our Reservoir Inserts

Get a self watering conversion kit to maximize the efficiency of your gardening tools. Container gardens thrive when on a schedule, and reservoirs help deliver consistency. Safely housed beneath a layer of soil, root balls are able to drink through a gravity fed capillary process. This is a very natural way for plants to hydrate and thrive!

Existing container gardens are easy to repot using a planter reservoir and the benefits are immediate. As soon as flower boxes are fitted with the insert they can begin to absorb liquid as needed. This process of "drinking up", so to speak, also creates a means for plants to store excess moisture that runs off from rains, only to be nourished with it at a later time.

Provide Gallons of Water for Plants, Sub-Irrigated

Use a water conversion kit for all your favorite outdoor arrangements, and for indoor plants as well. Each unit acts like a miniature water tank that can be easily removed and adjusted for different seasons. This method of self-sufficient watering can also prove invaluable for hard-to-reach second story window boxes or hanging plants. With a variety of sizes and shapes available to match most any container, our products hold generous amounts of water lasting weeks between refillings, unlike lesser products on the market which use small, flimsy PVC pipe that requires refilling daily. Each unit reaches up to 9" past each end. Meaning, a 31.5"L Reservoir is recommended for window boxes up to 49.5" interior length.

Plants in containers are more prone to drying out than ground plants because of their removal from the natural system of ground water and rain. A water conversion kit ensures that at-risk plants receive adequate levels of moisture to mimic a more natural watering cycle. All the gardener has to do is monitor levels and replenish as needed. Each unit is capable of providing moisture to roots planted within nine inches, so keep this in mind when selecting a size. Once in place, occasionally refill and allow the sub-irrigation system to work its nourishing magic.