Beehive with Enviromat on Roof. Reduces flight time for Bees!

Flat Roof Build-Up

Flat Roof

Plant Name

Enviromat Green Roof

Enviromat is grown by Q Lawns, Corkway Drove, Hockwold, Thetford, Norfolk IP26 4AB
and the information and photos on this page has been supplied by Angela Lambert
Sales and Marketing Co-ordinator
Q Lawns
Growers of Quality Turf and Enviromat Sedum Matting
Tel: 01842 828266        
Fax: 01842 8287911
websites:  ,  and

Introduction to Enviromat

Enviromat is a soft landscaping material that is grown in Norfolk by Q Lawns. Q Lawns are best known for growing the nation’s favourite brand of lawn grass and are renowned for their high standards of quality control and customer care. Those standards are applied just as rigorously to Enviromat as they are to their turfgrass.

By listening to gardeners, landscapers, architects and designers Q Lawns have learnt that there are many people who love the idea of a living green roof, or of a garden that is wildlife friendly, colourful and interesting all year round but busy lifestyles mean that a high maintenance garden is simply not practical.

Q Lawns have spent several years working with Bauder to develop Enviromat Sedum Matting, a low maintenance, easy to install, ground cover material with living plants that don’t need dead-heading, mowing, pruning or weeding.

Enviromat is an extremely versatile, frost hardy, drought resistant, random mixture of flowering sedum plants. The plants are especially chosen for their durability and the wide range of colour, texture and seasonal differences in their flowers and foliage. The plants are grown onto a patented free-draining geotextile mat with a layer of growing medium that allows just the right amount of moisture retention for the plants – not too wet, not too dry. That’s why Enviromat only needs watering during prolonged dry conditions.

Where to Use Enviromat

The beauty of Enviromat is that it is happy in almost any sunny spot in the garden. Use it as low maintenance groundcover or to create a living green roof. Its use is only limited by your imagination. Projects that customers have used Enviromat for include:-

  • Window Boxes
  • Rock Gardens
  • Pond Surrounds – ideal for hiding the pond liner
  • Steep Banks (up to 20 degrees) and on top of walls
  • Green roofing for animal housing – Enviromat helps insulate against heat and cold
  • Green roofing on sheds, garden offices or summerhouses – turns the building into a feature or helps it blend into the landscape plus a green roof can double the lifespan of your waterproofing so it saves you money on repairs.
  • Green roofing on garages or extensions up to 50m2 in area* – lovely to look out onto and has Environmental benefits too.

*Putting an Enviromat roof over 50 square metres onto a commercial or a domestic roof requires specialist design knowledge and additional components. Q Lawns are not in the position to advise on this type of roof construction or supply specialist components. For green roof construction they recommend that you take advice from green roof specialists Bauder Ltd. Tel: 01473 257671 or visit

What to Expect from Enviromat

All year round interest! The plants in Enviromat keep their leaves all year round and flower from early spring right through to autumn. Through the season you will see varying shades of yellow, pink, white and red flowers in different heights, shapes and patterns.

Enviromat foliage also changes colour and texture throughout the year as different species in the mixture all enjoy slightly different temperatures and light levels. Very often (but not always) Enviromat blushes a cheery shade of red during the winter months.

Enviromat is also attractive to wildlife. These sedum plants growing in Enviromat are native to Europe and just like their cousin, the butterfly sedum, are particularly attractive to garden-friendly insects such as bees, butterflies and ladybirds. Birds also seem to like Enviromat, not least for the spent flower heads that provide nutrition and nesting material.

Enviromat in Brief

Enviromat in Brief:-

  • Available in trays 50cm x 50cm, in slabs 1m x 1m or in rolls 1m x 2m.
  • A tray weighs 6 Kg on average.
  • Sedum varieties in the random seed mix include:-
    • Sedum Album
    • Sedum Reflexum
    • Sedum Sexangulare
    • Sedum Spurium
    • Sedum Kamtschaticum
    • Sedum Pulchellum
    • Sedum Acre
  • They cannot guarantee that each of the sedum species listed will appear in every piece of Enviromat.
  • Grown on to special geotextile matting for strength.
  • No need for soil. Enviromat contains its own growing media made mainly from composted green waste and recycled building materials.
  • All year round colour, changes with the seasons.
  • Water efficient.
  • Low maintenance – so labour saving. No need for mowing or deadheading.
  • Improves Air quality by filtering out dust and pollutants.
  • Absorbs CO2 and releases oxygen helping to reduce your carbon footprint.
  • Attracts wildlife.
  • Prefers full sun or part shade – cannot tolerate full shade.
  • Minimal ground preparation required.
  • Suitable for ground use, for containers or for green roofing on garden structures or domestic roofs less than 50m2.
  • Tolerates sea salt.
  • Can only be walked on very occasionally – is nowhere near as hardwearing as a grass lawn.
  • Ideal for commercial use on roundabouts and central reservations.
  • Will not be in flower at despatch.
  • Can be installed at any time of year.

How to Install Enviromat

Installing Enviromat is quick and easy but to ensure that the sedum plants remain vibrant, healthy and attractive for years to come here are some recommended guidelines to follow:-

  • Be aware of health and safety issues especially when working on a roof. Installing Enviromat is not a one-person job.
  • Avoid installing Enviromat directly on to soil. Weed seeds can be blown in on the wind or dropped by birds into the sedum matting. During a summer drought, weeds that do not have access to the soil will die out while the sedum plants will survive the dry conditions. Always put a layer of waterproof membrane (such as butyl pond liner) onto soil before installing Enviromat.
  • When creating a green roof, check that the building is strong enough. The Enviromat green roof build-up can weigh up to 100 Kg/m2. If in doubt, seek advice from the building’s manufacturer or from a structural surveyor. Check too that the waterproofing is in good condition as it is very difficult to repair leaks once the sedum matting has been installed.
  • Steer clear of roof slopes over 20 degrees they give rise to all sorts of challenges with irrigation and anchorage.
  • The surface of the roof or the ground should be smooth. Bear in mind that Enviromat must be in contact with the surface below at all times. Air pockets will lead to dead patches in the sedum matting. Enviromat will mould itself to gentle hills and hollows but it isn’t flexible enough to cope with sudden changes of incline egg corrugated tin roofs.
  • A living green roof needs an edging to protect your Enviromat against wind uplift. See their green roofing CD ROM for suggestions and specifications. See the CD ROM at HYPERLINK "" or ask your stockist for a copy. Remember that whatever edging you use water must be able to drain away.
  • On a flat surface (less than 3 degrees of slope), it’s important to use drainage matting beneath your Enviromat to ensure that the roots are never sitting in water. Sedum plants cannot survive in waterlogged conditions.
  • On any surface, sloping or flat, use a layer of water retention matting to store rainwater to help the plants survive a period of drought. Sedum plants are drought tolerant but they are not drought proof. Water retention mat is a lightweight; relatively inexpensive fleece that helps makes sure that the sedum plants have the right amount of water to stay healthy and vigorous. Use water retention matting on top of drainage mat and immediately below your Enviromat (see diagrams). On an apex roof, it helps to have a double layer of water retention matting for approximately 30cm either side of the ridge where water would normally run off quite quickly. There should be no spaces between pieces of water retention matting.
  • On slopes of 10 degrees or more, irrigation should be available. This needn’t be a complicated system – just make sure you can reach the plants with the spray from a hosepipe if you need to.
  • Steer clear of having small pieces of Enviromat at the edge – they will dry out much faster than larger pieces.
  • Try to avoid walking or kneeling on the plants as you are installing Enviromat in this way, they will settle in much faster.
  • Tucked underneath each piece of Enviromat is an extra flap of geotextile mat. Unfold this so that it covers the adjacent area and then put the next piece of Enviromat on top of the flap. This helps to anchor the sedum matting.

Care and Maintenance of Enviromat

Compared with bedding plants, herbaceous perennials, roses and many other popular garden occupants, Enviromat is remarkably easy to care for.

The propagation has been done for you, there is no need for daily watering and it doesn’t need mowing or trimming unless you want a textured ground covering rather than a flowering one.

So what steps do you need to take in order to keep your Enviromat in good order for the foreseeable future?

  • Watering
  • In general, Enviromat is more likely to be damaged by too much water than too little. Sedum plants hate to have perpetually soggy roots. Having said that, Enviromat will tolerate heavy rainfall as long as it has proper drainage. Enviromat will survive for a month or so with no rainfall and no irrigation. In most cases therefore, the British weather will absolve you of all watering duties but there are situations in which a little extra help is needed. Don’t worry if the leaves turn red and appear to shrink, this is the plant’s natural response to drought, however, if the leaves start to look wrinkled and rubbery (like a deflated balloon), then the plants need a good watering.
  • Feeding
  • Sedum plants are very economical when it comes to fertiliser. A once-yearly application of slow-release granular fertiliser is really all that is needed. Q Lawns recommend applying Nutrifusion Spring/Summer Lawn And Sedum Feed in late March. Always follow the manufacturers instructions.
  • Weeding
  • Enviromat will be delivered to you with a dense covering of plants. This makes it impossible for the majority of weeds to find a space to germinate in, however, there are always a few opportunists. If you have installed Enviromat to their recommendations i.e. put a layer of waterproof material such as butyl pond liner on top of the roof felt or soil beneath your Enviromat build up, you will find that in high summer, the sedum plants will revel in the hot dry conditions whilst any impostors soon languish and die. Any really persistent weeds can be pulled out by hand at the end of the summer.
  • Trimming
  • Most people choose Enviromat for its spectacular and long lasting floral display – in which case the plants will not need any mowing or trimming whatsoever. (Spent flower-heads look beautiful with a winter frost on them and they provide seeds and nesting materials for birds). Enviromat has wonderful textural qualities and can be used by the adventurous gardener (or topiary artist) to enhance features such as waterfalls, rills or statuary. Using a set of sharp garden shears, Enviromat can be trimmed to as short as 2cm to create some truly amazing patterns.
  • Bare Patches
  • When Enviromat leaves the production fields, roughly 95% of the matting has a dense covering of plants. Occasionally though, small areas of the growing medium become visible. Over time, the sedum plants will spread and fill in those patches. It is possible to speed up the process by breaking off little pieces of plant material from more dense areas and pressing them on to the bare patches. Within weeks the “Sprouts” will have grown roots and established themselves.
  • Pests and Diseases
  • There are very few pests and diseases that affect Enviromat. It doesn’t taste nice – so rabbits etc leave it alone, it can’t be dug into, so cats aren’t interested, insects like it but rarely do any damage and the fungal diseases that sometimes affect other garden plants can’t cope with the thick waxy coating on the leaves so Enviromat is remarkable trouble free.






Enviromat on Roof

Pebble edge to Enviromat on Roof

Kate's Sedum Roof




Enviromat on Office Roof




Site Map of pages with content (o)


(o)Other Colours

(o)Variegated White
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Grass Height from Text Border

Blue =

24-72 inches
(60-180 cms)

Red =

Grass Soil Moisture from Text Background

Wet Soil

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Click on thumbnail to add the Grass Description Page of the Grass named in the Text box below that photo.
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Grass INDEX link to Grass Plant Description Page

Botanical Name / Common Name

Inflore-scence Colour

Inflore-scence Months

Height x Spread in inches (cms)

Foliage Colour

A, B











Carex pendula / Weeping Sedge

Dark Brown spikes


May, June

54 x 60
(135 x 150)

Shiny Mid-Green leaves, which are 36 inches long and Blue-Green beneath


Cortaderia selloana / Pampas Grass

Silver spikelets



108 x 60
(270 x 150)

Mid-Green foliage with very sharp cutting edges


D, E







Festuca glauca / Blue fescue

Blue-Green spikelets


July, August

12 x 10
(30 x 24)










Hakone-chloa macra 'Albo-variegata' / Hakon Grass



12 x 12
(30 x 30)

Green variegated White


I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z







CT Flora Turf

CT Flora turf soil-free turf production process has a number of advantages over wild flower seeding:-

  • Dense roots eliminate weeds
  • Much faster to establish than seeding
  • Light and easy to handle
  • 50:50 plant mix of flowers and grasses
  • Seed mix native to the UK including nectar rich species for bees and butterflies
  • Effective erosion control for banks
  • Very little maintenance
  • Ideal for green roof projects

Enviromat Green Roof

Enviromat is an extremely versatile, frost hardy, drought resistant, random mixture of flowering sedum plants. Use it as low maintenance groundcover or to create a living green roof.


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Site design and content copyright ©April 2007. Page structure amended January 2013. Feet changed to inches (cms) July 2015. Chris Garnons-Williams.

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