Cambridge has taken centre stage at this year’s RHS Chelsea Flower Show thanks to a captivating garden created by scientists from the Sainsbury Laboratory at the University of Cambridge. The team’s exhibit, titled Blooming Numbers, won a coveted silver-gilt medal in the show’s GreenSTEM section, recognising its outstanding blend of botanical beauty and scientific insight.
The interactive garden, designed to showcase how bees perceive flowers under ultraviolet light, impressed both visitors and judges. Kathy Grube, a researcher at the Sainsbury Laboratory, expressed delight at the recognition, telling the BBC: “We are all about plants, and we thought it would be the perfect marriage for us to come here and share some of the research we are doing.”
The garden, developed in collaboration with a family-run garden centre in Oakington, was carefully curated to highlight the hidden world of pollination. Plants were selected not just for their colour and form, but for their UV-reflective qualities – a spectrum invisible to humans, but vivid and crucial to bees.
The display featured plants nurtured since Christmas, including vibrant yellow bidens, which under UV light appear dramatically different to pollinators. Melanie Sadler, owner of the partnering garden centre, explained to the BBC:
“They wanted a garden to match their experiments because bees see something completely different under UV light to what we see. We’ve chosen these plants to show off what the bees see.”
The Sainsbury Laboratory’s wider research focuses on how plant growth impacts crop sustainability and supports pollinator populations — a crucial area as global agriculture increasingly relies on natural ecosystems.
The medal was discreetly left for the team by show judges, leading to a moment of joyful discovery. “We were jumping up and down when we found it,” said Grube.
With science rooted firmly in soil and petals, this Cambridge collaboration demonstrates how research can bloom far beyond the lab — and right into the hearts of flower show visitors.
