Sensory garden design advice

5. Plants for a sensory garden

Plants need to fulfil different roles in a sensory garden. While they will usually be the stars of the show in terms of providing sensory interest, they will also be responsible for functional things like shelter from cold winds, shady respite from summer sun and enclosure for a quiet space. They can also provide food and homes for wildlife and raw materials for indoor craft activities.

We've collected the following ideas to help you plan the sorts of plants you need to create a comfortable space and to provide multi-sensory interest at all times of the year.

Plants for shade

Look for options to make the most of any existing shade (trees, structures) for locating seats and areas where people will be encouraged to dwell. In new spaces, plant trees for the longer term, along with more immediate solutions like pergolas planted with climbers (eg Wisteria) and tunnels/structures made from basket willow. Aim for creating dappled rather than heavy shade (which can be oppressive).

Plants for shelter

Shelter from winds can be achieved by planting shrubs or trees, or a mix of both. Trellis planted with climbers is another option. The ideal is a windbreak that is porous rather than solid so the wind is slowed down rather than deflected over and around which can produce gusts on the leeward side.

Choose plants that are long-lived and don't need regular maintenance. Including some evergreens will provide shelter through the winter. Include plants that serve other uses too. For example, holly that can be cut for Christmas foliage and elderberry to give flowers and berries for making cordials.

Seasonal interest

It is important to plan for sensory interest through the year, rather than everything happening over a few months. With care, there is plenty of interest that can be included for the winter months.

When is your garden going to be used? Is it all year round or are there periods when it won't be used much or at all? Make sure you plan your plantings so they give you the displays you want at the times when you most need them. It's a good idea to make a calendar showing what plants will be in display in each month through the year so you can make sure it's a good fit with how your garden is planned to be used. This can be a great group activity in the planning stage, getting people marking or sticking pictures of the plants for the different months.

You can add more layers of seasonal interest by adding bulbs and annuals to give you displays at times when other plants aren't doing so much. If you have time you can get people growing bulbs themselves for planting in the garden.

Early signs of spring are welcomed by most people, but particularly those who find it difficult to go out much in the winter. Snowdrops, early daffodils and Hellebores are good examples of flowers that come out early.

Plants for reminiscence

Plants, especially flowers, are great for triggering memories and this makes them ideal for reminiscence. This is particularly relevant for older people and those living with dementia and memory loss. If possible, involve people in collecting memories and stories so you know what plants you need, for example by making collages of pictures of flowers and plants.

In a garden it can be as simple as including some containers of annual flowers that are old favourites (eg marigolds, forget-me-nots, pansies, snapdragons), letting the grass grow longer between cuts so the daisies can flower, having a tub or two for planting a favourite vegetable (eg potatoes, runner beans) or growing some fresh mint for making tea.

The design can also include features intended to bring back memories. For example, an old garden shed with tools, a border of old-fashioned scented pinks, old clay pots.

For more ideas, read how about our Creative Spaces project which has been using gardens and plants to engage older people living with dementia.

Plants for celebration

Do you have celebrations that your gardens can add to? Maybe growing pumpkins for halloween, holly and other evergreens for Christmas, vegetables and fruits for a school festival, daffodils for spring. Do you have room to plant a tree (maybe in a container) that can serve as a Christmas tree? Ideally, include an outdoor socket nearby so people can decorate and add lights.

Plants to attract wildlife

An internet search will reveal plenty of lists of flowers that attract butterflies and bees, for example ice plant (Sedum spectabile), buddleia and comfrey. Plant these near windows if you want them to be seen from indoors. Including food plants for caterpillars can be a good addition in a garden with a learning focus.

Plants can be included to attract birds, along with bird feeders to encourage their regular visits. Bird boxes and bug hotels are good ways of making the garden more wildlife-friendly and can be good making opportunities too.

Plants to avoid

As the point of a sensory garden it to encourage people to actively touch and explore plants we recommend avoiding ones that are toxic or likely to cause skin reactions or injury.

Is it poisonous? The Horticultural Trades Association list of potentially harmful plants puts plants in three categories, from A to C. The highest risk plants are in A and B, though you may decide to exclude all categories depending on intended users and the likelihood of them eating plant material or having particular skin sensitivities.

Is it thorny or spiny? Plants that are moderately prickly, like holly, can add nice sensory variety, but we advise avoiding using ones with more serious thorns, like pyracantha and some roses unless you put them out of reach.

Another scented plant? Scents are important but a scent overload is unappealing. To avoid this, spread scents through the year and avoid too many 'heady' scents.

Labour intensive - there is often scope for some plants that require more work, such as bedding plants, but most projects don't have budgets for a lot of regular maintenance. So mostly plants will need to be low maintenance i.e. they live a long time, don't need staking or dead-heading, and are not prone to disease.

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More sensory garden design advice

Whether you are planning a new sensory garden, or making an existing landscape more sensory-rich, we've written these guidance notes to help you develop your ideas.

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