How to Water a Living Plant Wall
Thankfully, there are a lot of options when it comes to plant wall irrigation. In this article, we will explain the common options and when they are used.
Green Oasis has been installing and maintaining living walls since 2008 and we’ve seen many different success stories that we will share with you today. We promote natural soil based live wall systems for many reasons, so that is what will be discussed here.
The Different Systems
- AUTOMATIC IRRIGATION with drain-connected overflow.
- RECIRCULATING IRRIGATION with tanks and Recirculating Pump.
- Irrigation connected to the BUILDING WATER SUPPLY, manually turned on.
- Irrigation supplied manually from a MOBILE WATER TANK.
- MANUAL, hand watering
The water runs through a filter, a simple pressure regulator, a fertilizer injector, a flow meter (optional), a control value and finally a drip emitter at the top of the wall. Any runoff would then flow to the building drain.
The challenges are: the big issue of mineral build-up over time, a float value that can get stuck on or off with big consequences, maintenance issues of a pump, and finally the build-up of fertilizer salts that often throw the Ph level of the water off, harming the plants. There are occasions where this system is the best option but most often there are better solutions.
Building Water Supply Connection (Manual)
This is commonly used on interior walls when the concern of running water with no human supervision is an issue. The system is designed the same, except instead of a control value, you have a manual valve.
When the horticulturist is on-site caring for the plants, they run the irrigation while they are caring for the plants.
Mobile Water Tank
The system involves the maintenance tech filling a water tank at a nearby water source and then wheeling it to the wall and then pumping it through the irrigation channels to the plants.
Not as efficient as the other options but on interior walls this would only typically happen every 2-3 weeks.
Manual Hand Watering
If you are considering a live wall, get in touch, our team would love to help you improve your space – you can’t beat nature in improving urban spaces!
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