Clever Pots Drain Pipe Plant Pots, Drain Planters with Drainage Holes, Lightweight and Weather Resistant Drain Pipe Planter Flower Pot, Plastic Plant Pot Fits Standard UK Downpipes, Sage, (519737)

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Based on trial data, the narrower diameter is recommended to limit the flow out of the planter to a reasonable level to maximise the potential for flood storage, especially where extra storage was provided by the geocellular storage. One hour after a rainfall event begins, up to 0.75m 3of water can drain from the bottom of the planter. In this way, the whole garden could be considered a rain garden. However, more commonly, the low-lying area or dip itself, is defined as the rain garden. Benefits of rain gardens Your horizontal drainpipe should sit along the bottom of the planter above a bed of gravel. Image by South East Rivers 4. Start filling it up! The berm will keep the water in the rain garden, so has to be well-compacted, around 30cm (1ft) wide and 10cm (6in) in height

The size of the rain garden is determined by the size of the roof and other impermeable surfaces that carry water. The depth usually varies between 10 and 20cm. The standard SuDS planters are drained via a perforated drainage pipe running along the bottom of the planter. A number of factors influence the drainage rate including the drainage pipe diameter,soil mix and therefore infiltration rate,impact of plants and soil conditions prior to any particular rainfall event will be important. If you’d like to speak to a member of our landscape or communities team about implementing something similar in your community, don’t hesitate to get in touch: To properly locate the rain garden, first, need to know where the rainwater comes from. Gutters are one of the main sources. If one of them is connected to a larger roof area, it will carry more water to the land.Multiply the area of the roof by 0.2 (20%) to obtain the area of the rain garden to accommodate typical UK summer rainfall.

Here’s a recent technical drawing from Groundwork’s Landscape Architects detailing how to construct a rain garden planter: SuDS planters, or stormwater planters, are a sustainable stormwater management solution with their intelligent internal drainage system. With both bio-retention and additional internal storage, these planters are an innovative solution to property level retrofit SuDS and can work out as much less expensive than most groundwork interventions. A rain garden planter is filled with layers of drainage clay pebbles/shingle, and a specialist free draining growing medium. They are isolated from the water management system by a geotextile layer. The planter is lined to form a waterproof seal to retain the stormwater for regulated slow release. For the rain garden to collect the optimum volume of rain, the longer side should face up the slope

Sustainable drainage systems have become increasingly popular in recent years, and for good reason. They mimic nature and generally manage rainfall close to where it falls. SuDS can be designed to transport (convey) surface water, and slow runoff (attenuate) before it reaches watercourses.