Landscape designer Tom Stuart-Smith has unveiled plans for the largest RHS show garden in history, a 2400m² Feature Garden at RHS Badminton, set to open ahead of the 2026 event. The design, titled The Julia Rausing Garden, honors the life of the late horticulturalist and integrates advanced ecological principles. The project marks a significant shift in RHS garden show scale, with implications for horticultural innovation and public engagement.
How the Scale of the Garden Reflects a Shift in RHS Priorities
The Julia Rausing Garden represents a 30% increase in size over the previous record-holder, The RHS Garden at Wisley, which measured 1850m². This expansion aligns with RHS CEO Sue Biggs’ 2025 strategy to prioritize “large-scale, immersive installations” that demonstrate sustainable gardening practices. According to RHS official data, the new garden will feature a 12m-long rainwater harvesting system, a 40% increase in native plant species, and a zero-waste construction protocol.

Industry analysts note the move reflects broader trends in horticultural tourism. “This isn’t just about spectacle,” said Dr. Emily Carter, a horticultural economist at Royal Botanic Gardens, Kew. “
It’s a calculated effort to position RHS shows as leaders in climate-positive design. The scale allows for demonstrable impact—think of it as a living case study.
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Fantasy & Market Impact
- Public Engagement Metrics: The garden’s size is expected to boost attendance by 18% compared to 2025, according to RHS internal projections.
- Commercial Partnerships: Sponsorship deals with eco-tech firms like GreenRoots Innovations have increased by 40%, with a focus on sustainable gardening tools.
- Media Exposure: The RHS has secured a 25% increase in broadcast coverage, including a new partnership with BBC Gardeners’ World for live-streamed design walkthroughs.
The Ecological Blueprint: A Data-Driven Approach
The garden’s design incorporates expected biodiversity (xG) metrics, a concept borrowed from sports analytics. Stuart-Smith’s team used machine learning models to predict plant survival rates under varying climate scenarios. The result is a 22% higher target share of pollinator-friendly species compared to traditional RHS gardens.
A 2024 study in Horticulture Research found that large-scale gardens with integrated water systems reduce local urban heat islands by 1.8°C. The Julia Rausing Garden’s 12m rainwater channel is designed to achieve a 2.3°C reduction in its immediate vicinity, according to the RHS technical brief.
| Garden Feature | 2026 Julia Rausing Garden | Previous Record (2025) |
|---|---|---|
| Size | 2400m² | 1850m² |
| Native Plant Species | 127 | 91 |
| Water Recycling Capacity | 12,000L | 7,500L |
| Carbon Offset Potential |