Rain garden planters: Designed for Flooding
As a result of climate change, we are seeing more and more flash floods occuring due to extreme rainfall. This is further amplified by the trend for covering gardens with impervious materials instead of rain absorbing lawns, including front gardens paved for driveways and the reduced sized of back gardens in favour of new buildings.
Rain garden planters, or stormwater planters, are a sustainable stormwater management solution with their clever internal drainage system.
They collect rooftop runoff and work like a rain garden in a planter allowing for sustainable stormwater management.
These planters are particularly useful if you have a significant amount of rain water traveling from the rooftop or other impervious surface directly into a drain causing flooding on your property.
How Do Rain Garden Planters work?
A rain garden planter utilises rain water that lands on the roof. Water from the drain pipe is directed into the planter. The soil absorbs and stores the rainwater for the plants to use, known as bioretention.
Excess rainwater filters into the gravel layer and drains out the perforated base drainage pipe.
Any water that pools on the surface, drains down the overflow upstand.
They work in the same way as rain gardens just on a smaller scale.
Feel free to get in touch to speak to a member of our design team today.
Integrating Sustainble Drainage Systems (SuDS)
Rain garden planters are an appealing adaptation of Sustainable Drainage Systems (SuDS) feature which steadies surface water flows, and reduces surface water flood risk.
With both bioretention and additional internal storage, theses planters are an innovative solution to property level retro-fit SuDS, and can work out very much less expensive than most groundworks intervention.
SuDS interventions, such as these planters, can of course have multiple Green Infrastructure benefits, in addition to their contribution to flood alleviation, when thoughtfully designed.
You could also opt for a planting palette that contribute towards boosting biodiversity.
Water may discharge from a planter into the normal drains or it could be diverted further into a Rain Garden.
For an enhance biophilic and aesthetic effect, we like to encourage the construction of landscaped features that the water could travel along and slowly percolate into the soil, such as:
- an attractively constructed rill
- gulley
- channel into a garden bed
Talk to a member of our design team for a bespoke design tailor made to your needs
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