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Sub-irrigation Unit

Original price was: $68.80.Current price is: $42.05.

SKU: SIU Category: Tag:

Description

Description

Turn any planter into a self-watering planter

Everyone struggles to keep their containers looking their best and keeping them watered properly is key. The Riverside Sub-Irrigation units allow you to install a water reservoir in your container to extend the time between watering. These units will fit any container, not just Riverside. Spend time on other projects and less time watering your plants.

Round

SKU Diameter Height Capacity
SIU14 14″ 3.5″ 1.5 gal
SIU18 18″ 3″ 2.5 gal
SIU20 20″ 3.5″ 3.5 gal
SIU24 24″ 3.5″ 4.5 gal
SIU28 28″ 3.5″ 6.5 gal
SIU32 32″ 3.5″ 8 gal
SIU36 36″ 3.5″ 10 gal
SIU48 48″ 3.5″ 19 gal

Square

SKU Length Width Height Capacity
SIUSQ12 12″ 12″ 3″ 1.5 gal
SIUSQ16 16″ 16″ 3″ 2.5 gal
SIUSQ23 23″ 23″ 3″ 5.5 gal

Rectangular

SKU Length Width Height Capacity
SIUR19 19″ 8″ 3″ 1.5 gal
SIUR25 25″ 8″ 3″ 2 gal
SIUR31 31″ 8″ 3″ 2.5 gal

All filler tubes are 24″ long and can be cut to fit your planter needs.

Here’s a more polished, professional version you can use on your product page or installation sheet:


Riverside Installation Recommendations

For best performance and long-term plant health, please follow the installation steps below:

Step 1: Prepare the Base

Add a layer of gravel or similar drainage material to the bottom of the planter. Fill to your desired depth to create a stable drainage foundation.

Step 2: Install Filter Layer

Place a sheet of filter cloth (landscape fabric or weed barrier) over the gravel layer. This prevents soil from migrating into the drainage base while allowing proper water flow.

Step 3: Position the Reservoir

Set the reservoir on top of the filter cloth. Install the fill tube and secure the cap in place.

Step 4: Add Soil Mix

Add your soil mixture around and over the reservoir, filling the planter to your desired height. Gently firm the soil as you go to eliminate air pockets.

Step 5: Adjust Fill Tube

Trim the fill tube to the appropriate height for your planter configuration.

Step 6: Planting

Position your plant material as desired and finish filling the planter with soil mix, ensuring proper coverage and support for root systems.

Step 7: Watering & Reservoir Fill

Thoroughly water the soil from above to help settle the planting mix. Then, fill the reservoir through the fill tube until full. Monitor and refill the reservoir as needed to maintain optimal moisture levels.