Vertical gardening can look impressive and disguise problem outdoor areas, but it's something that requires careful consideration and maintenance.  

 Living Wall Hackney tapestry vertical gardens

Image: Tapestry Vertical Gardens 

Vertical gardens take the idea of outdoor planting to a new plane. A living wall involves designing and installing a prefabricated growing system to create a vibrant, striking feature.

With professionally installed systems, the supporting structure is usually a type of racking made up of pockets or cells. Other methods include a capillary matting system, which attaches to a waterproof backing and frame. A nutrient-rich irrigation system is an essential part of the design. An expert will advise on location, aspect and adjacent features, which all play a part in a flourishing wall.

Grand Designs spoke to Adam Shepherd of Tapestry Vertical Gardens for his key considerations for an outdoor living plant wall. 

living plant wall outside of a modern dining room - grand designs - home improvements

Image: A mix of herbs and hardy perennials provide year-round colour, from £530 per sqm including design and installation, Verti Grow.

Maintaining a living wall

A living wall will thrive if plant selection is considered for the aspect and climate and the wall is maintained and fed correctly. Professional installers offer a maintenance plan that can be quarterly, but if you’re after a more manicured look choose monthly maintenance.

Irrigation made easy

The irrigation system is designed to keep the green wall constantly moist and releases water and nutrients at a set rate via an automated system. Depending on the design of the wall, the top sections may need to be watered for longer as the bottom ones benefit from run-off. The irrigation system includes a feed tank kit, which can be hidden behind the green wall itself, in planting beds or in seating areas. The kit doesn’t have to be anywhere near to the living wall, just as long as a pipe can be run between it and the wall.

Read more: 4 real houses with living plant walls

3 Marquis Dawe Vertical Wall Garden

Image: Marquis & Dawe

Drainage considerations

Drainage is important and, in most instances, a channel drain is installed in the paving beneath the living wall to carry away excess water. Alternatively, an integrated drip tray that sits above any paving and takes the wastewater away to an agreed point can be installed. Drip trays are a great option for retrofit living walls and when installing above doorways.

Soilless systems

A soilless system means the growing medium won’t decompose or have to be replaced, unlike soil-based systems. Plants are rooted into a porous, mould-free, geotextile material that allows for root migration throughout the wall.

living plant wall architecture One World Design Architects charlie turner - home improvements - grand designs

Image: As part of the renovation of this family home in London, ANS Global were brought on board to create a unique living wall design that almost seamlessly joins the interior and exterior of the property. Photo: Charlie Round Turner

Feature lighting

Adding lighting, such as external LED in ground uplighters or overhead spotlights to the decking or paving beneath the living wall, creates an impressive focal point at night and allows it to be used in the evening.

 

Considering an outdoor plant wall? Share your thoughts on these tips with us by tweeting us @granddesigns or post a comment on our Facebook page.

 

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