‘The Subaru Cocoon’ Garden to be unveiled: Subaru UK & Ireland is set to unveil ‘The Subaru Cocoon’ garden at the prestigious RHS Hampton Court Palace Garden Festival 2025, which runs from 1st- 6th July.

The installation, created by award-winning designers Mike McMahon and Jewlsy Mathews of Mike McMahon Studio, with the Subaru Cocoon Garden reflecting a sculptural, sensory refuge, inspired by the UK and Ireland’s vanishing temperate rainforests.

‘The Subaru Cocoon’ Garden to be unveiled

Once covering 20% of Britain, these lush, biodiverse ecosystems have now dwindled to less than 1%, making them one of the UK’s most threatened habitats. The Subaru Cocoon draws attention to this quiet crisis, reimagining the traditional walled garden as a sanctuary of both protection and ecological memory.

The display will sit in a prominent position within the historic grounds of Hampton Court Palace. The six-day festival is expected to welcome over 140,000 horticultural enthusiasts to the Palace gardens in west London for a celebration of garden designs, floral displays, and a wide range of other family-friendly activities.

Lorraine Bishton, Managing Director at Subaru UK & Ireland said: “The Subaru Cocoon’ garden at the RHS Hampton Court Palace Garden Festival supports our commitments to safety and sustainability, whilst showcasing this beautiful, but threatened native habitat.

We know our customers also have a strong connection to nature and are engaged with initiatives that raise awareness of environmental responsibility.

We are delighted that following the show, the garden will provide a legacy supporting the inspirational charity Horatio’s Garden.”

The Cocoon garden reflects Subaru’s commitment to sustainability, care, and considered movement – values shared across both brand and garden installation. Just as Subaru supports responsible exploration through electric innovation, with the zero-tailpipe emission, all-wheel-drive Subaru Solterra, the garden offers a place of refuge that treads lightly on the land. Both prioritise harmony with the natural world. At their core, they both share a quiet belief in elegant, considered design to live better, prioritising awareness and beauty while simultaneously minimising unwanted impact.

The Subaru Cocoon Garden features a striking curved Jali wall – a perforated architectural screen that honours co-designer Jewlsy Mathews’ South Indian heritage – made from 4,500 innovative Kenoteq K-Briqs. These revolutionary building materials are manufactured from over 95% recycled construction waste and emit 95% less carbon than traditional fired bricks. The Jali wall doubles as a super-sized ‘insect hotel’, its porous structure supporting microhabitats across the site. By using sustainable bricks, the garden project has diverted 9.45 tonnes of construction waste from landfill and saved 1,972 kg of CO₂ emissions – equivalent to the amount of CO2 80 mature trees would absorb over a full year. This innovative approach to biodiversity follows Mike McMahon Studio’s RHS Chelsea Gold Medal-winning garden in 2024.

In lieu of a traditional walled garden door, a reflective water threshold —a symbolic cleansing—leads into a cool, immersive landscape of texture and shadow. Cantilevered fallen tree trunks hover dramatically above the wall, planted with native epiphytes in a bold interpretation of the forest’s “chop-and-drop” cycle, where decaying wood returns nutrients to the soil. The planting scheme features exclusively native species from the UK and Ireland, including thirteen species of fern, Silver Birch, and Scots Pine, structured in forest-like layers to celebrate the rich biodiversity of Britain’s temperate rainforests.

Mike McMahon of Mike McMahon Studio said: “The UK and Ireland’s temperate rainforest is a landscape that’s both ecologically rich and tragically overlooked – something we wanted to highlight with the Subaru Cocoon Garden. This type of installation has never been created at Hampton Court Palace before; it felt like the right moment to highlight the fragile epiphytes and micro-ecosystems that thrive in these endangered environments.”

“The garden is enveloped by a circular brick jali wall that frames the plants, plays with light and shadow, and invites you to look through and around, like you’re glimpsing through trees. Sustainability isn’t an add-on, it’s embedded in every decision we’ve made, from using zero concrete to ensuring all elements are reusable or relocatable once the show ends.”

As part of Subaru’s commitment to sustainability, the garden will be given a second life after the festival with plans to repurpose it to Horatio’s Garden charity, ensuring the installation continues to inspire and provide a place to nurture the wellbeing of people beyond the event.

For more information on the Subaru range, including the all-electric Solterra, visit www.subaru.co.uk

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