“The mushrooms have arrived!” It was the cry everyone wanted to hear this afternoon as we finished arranging the forest garden plants and laying the woodland mulch. For the last couple of days the team, led by award-winning designer Jon Davies, have been creating an exciting forest garden installation at the RHS Autumn Show in the Lindley and Lawrence Halls, London. By tomorrow evening it will be completed for the preview and then the main show on Wednesday 25th and Thursday 26th October, when we’re all looking forward to chatting to visitors about the garden and its fascinating plants.
The exhibit showcases the sustainable method of forest gardening – creating a self-supporting ecosystem based on natural woodland. Every plant has a role to play, either as a food source, for timber, medicine, material or providing support for other plants, by fixing nitrogen in the soil, creating shade or as ground cover to suppress weeds. In this way, the garden will be largely self-maintaining, lessening the need for human intervention and creating a diverse and resilient ecosystem. Forest gardens can be large areas, such as Martin Crawford’s seminal garden in Dartington, Totnes, but they can also be much more modest affairs like the one at the show, suitable for rural or urban areas in community spaces and private gardens.
One of the things I find fascinating about forest gardens is the way they combine a wide range of plants from across the world to create sustainable ecosystems. From Chilean wineberry (Aristotelia chilensis) to sausage vine (Holboellia coriacea) and society garlic (Tulbaghia violacae), the RHS Forest Garden celebrates exciting plants with a variety of uses. The garden has several areas with different growing conditions from the woodland floor, to a pond and boggy area, a woodland clearing and an open glade.
On entering the garden my eye is first drawn to the canopy of the magnificent forest pansy (Cercis canadensis) with its vibrant yellow cordate leaves. But difficult as it is to ignore the stunning autumn colours above, the woodland floor offers equally inspiring botanical beauties, just in miniature form. Ever since seeing them in Jon’s Hampton Court Forest Garden, I’ve been noticing and appreciating clover leaves wherever I’ve seen them and this garden includes some delicate purple and red forms of Trifolium repens which encourage the visitor to engage with the detail on the forest floor.
The journey through to the clearing leads past the pond area with a range of hosta, sedum and mint (all with edible leaves) and the umbels of skirret (Sium sisarum) with its sweet-tasting roots. Out of the water rise the impressive spathes of arum lilies (Zantedeschia aethiopica) in front of the fabulous red leaves of Viburnum dilatatum with its edible fruit and foliage.
Inside the clearing, the logs support a range of fungi including oyster and shittake mushrooms. The canopy is created by hazels, crab apples and hops, sausage vines and kiwi trailing up and over the wooden supports. This area has a lovely relaxing feel and creates a calm space in the heart of the garden.
On the far side of the forest garden, in a more open area, plants like the strawberry tree (Arbutus unedo), myrtle (Myrtus communis), sea buckthorn (Hippophae rhamnoides) and the purple-leaved Japanese pepper (Zanthoxylum piperitum) thrive. In this area, more unusual understorey edibles like yacon (Smallanthus sonchifolius) and hardy ginger (Zingiber mioga) offer opportunities for new taste sensations, whilst traditional ornamental shrubs like Mahonia aquifolium, rosemary (Rosmarinus officinalis) and fennel (Foeniculum vulgare) remind us of the multi-functional nature of many of our garden plants.
It’s exciting that this year’s RHS Autumn Show has a garden of this nature at its heart, surrounded by organisations like the Permaculture Association, Pennard Plants (with its engaging display of edibles) and the Rabbit Pop-up Food Stall offering seasonally inspired food and drink made from sustainable and wild British ingredients. It also fits in well with current national initiatives such as the launch, this weekend, of the National Forest Garden Scheme (NFGS) which aims to bring us individually, and in our communities, to a new level of harmony and well-being through planting, eating from, and enjoying Forest Gardens. In our changing world, forest gardens, with their mix of sustainable methods and diversity of plant species, offer a real opportunity to work with the land, promote biodiversity and widen the range of edibles upon which we all rely.
Slideshow of the finished garden
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