ARTICLES

These Are the World’s Most Vibrant Gardens, According to Science

A research, released just as spring flowers begin to bloom, offers an objective ranking of gardens based on their color saturation and brightness levels

By: THURSD. | 16-04-2025 | 8 min read
Flowers Travel
The World’s Most Vibrant Gardens, According to Science

A new study has identified the world's most vibrant gardens from a scientific perspective. The Premier Inn hotel chain applied advanced hue, saturation, and brightness (HSB) color theory to analyze more than 150 gardens worldwide, revealing intriguing patterns in garden vibrancy across different continents. This research, released just as spring flowers begin to bloom, offers an objective ranking of gardens based on their color saturation and brightness levels.

The timing of the study, released at the onset of the spring season, feels opportune. Gardens, in their seasonal cycles, embody renewal. And with longer days and nature turning up in full bloom, these gardens offer the perfect setting for a day out. The results of the Premier Inn study, therefore, present a fascinating insight into the most chromatically rich horticultural and gardening displays on earth, with European gardens—especially those in the United Kingdom—leading the rankings.

The Science Behind Garden Vibrancy

To determine which gardens truly deserve recognition for their visual impact, Premier Inn employed a methodical scientific approach rather than relying on subjective opinions. The researchers analyzed unfiltered satellite imagery of the more than 150 renowned gardens from around the world, sourced through Google Earth to ensure consistency and eliminate bias in the evaluation process. This approach allowed for a standardized assessment of each garden's visual characteristics, regardless of their global location or popularity.

 

These Are the World’s Most Vibrant Gardens, According to Science
Brazil's Botanical Gardens of Curitiba.
These Are the World’s Most Vibrant Gardens, According to Science
Kenroku-en Garden and Koishikawa Korakuen Garden in Japan (left) and (right) Kew Gardens. Photo by @lundonlens.

 

The analysis focused specifically on HSB color values, which break down color into three key components: Hue (the color itself), Saturation (the intensity or purity of the color), and Brightness (the lightness or darkness of the color). Of these three components, the study placed primary emphasis on saturation levels as the most reliable indicator of a garden's color intensity. To calculate the final vibrancy score for each garden, researchers combined saturation and brightness values, creating a comprehensive metric that reflects the garden's overall visual impact.

This scientific methodology represents a significant departure from traditional garden assessments, which often rely on historical significance, botanical diversity, or subjective aesthetic judgments. Focusing exclusively on color properties, the study provides an objective measure of visual impact that goes away from cultural preferences or design philosophies. It offers a fresh perspective on what makes a garden truly vibrant.

 

World’s Most Vibrant Gardens, According to Science
Australia's Adelaide Botanic Garden (top) and New Zealand's Auckland Botanic Gardens.

 

Global Hierarchy of Garden Vibrancy

The research findings establish a clear global hierarchy of garden vibrancy, with European gardens, particularly those in the United Kingdom, dominating the top rankings. Kensington Palace Garden in London secured the premier position with a vibrancy score of 254, setting the benchmark for garden color intensity worldwide. The garden's manicured flower beds, bright floral displays, and carefully structured landscapes contribute significantly to its impressive saturation levels, demonstrating how deliberate design choices can maximize visual impact. This royal garden, located in the heart of London, surrounds the historic residence where several members of the British royal family reside. Its manicured flowerbeds, vibrant seasonal plantings, and the famous Sunken Garden combine to create a range of colors that outperforms other global competitors.

 

World’s Most Vibrant Gardens, According to Science
Kensington Palace Garden.
World’s Most Vibrant Gardens, According to Science
Royal Botanic Gardens, Kew.

 

Following closely behind, Kew Gardens claims the second position globally with a vibrancy score of 250. As a UNESCO World Heritage Site housing over 50,000 living plant species, Kew Gardens derives its vibrant character from an extraordinary diversity of seasonal plantings and specialized landscape zones. Officially known as the Royal Botanic Gardens, Kew is one of the most famous and extensive botanical gardens in the world. It spans more than 330 acres with over 50,000 living plants and offers the ultimate destination for plant lovers, nature lovers, and researchers.

 

These Are the World’s Most Vibrant Gardens, According to Science
Inveraray Castle and Gardens in Scotland.

 

The third position is held by another British gem, Inveraray Castle and Gardens in Scotland, which scored 248.4. Unlike its more structured counterparts, Inveraray's gardens achieve their vibrancy through a harmonious blend of formal garden elements with natural woodland landscapes, creating striking visual contrasts against the Scottish countryside backdrop. Essentially, Inveraray Castle is a spectacular Scottish baronial style castle found in Argyll and Bute in Western Scotland. Home to the Duke of Argyll, the castle is surrounded by breathtaking gardens, woodlands, and even views of Loch Fyne. The gardens are beautifully arranged with winding paths running between the flowerbeds, making the ideal setting for a relaxing stroll, while the castle is also famous for its vibrant rhododendron and azalea collection, which is best viewed during the spring months from late April to early June.

 

the World’s Most Vibrant Gardens, According to Science
Argentina's Rosedal de Palermo.

 

Breaking the UK's monopoly, Argentina's Rosedal de Palermo claims fourth place globally with a vibrancy score of 240. As South America's highest-ranking garden, El Rosedal features thousands of roses that create a mesmerizing display during peak blooming season. Located within Buenos Aires' Parque Tres de Febrero, this garden combines romantic rose displays with architectural elements like the Andalusian patio and the photogenic White Bridge. The UK reclaims its position with the Kyoto Garden in London's Holland Park ranking fifth, achieving a vibrancy score of 238. Following this, Germany makes its first appearance with Nymphenburg Palace Gardens near Munich, placing sixth with a score of 231. These gardens blend French Baroque design with English landscape elements, featuring a grand canal that leads to a picturesque central lake, creating striking visual contrasts that contribute to its high color intensity.

 

These Are the World’s Most Vibrant Gardens, According to Science
Kyoto Garden in London (top) and (bottom) Nymphenburg Palace Gardens near Munich. Photos by @cristiano_grandi and @carminacarlos.

 

Ireland's Powerscourt Gardens ranks seventh globally, scoring 226 for its 47-acre grounds that showcase Italian-style terraces against the dramatic backdrop of the Wicklow Mountains. The UK returns to the rankings with Oxford Botanic Garden also scoring 226, while Germany's Herrenhausen Gardens near Hannover follow closely with 225 points. Completing the global top ten is Dubai Miracle Garden, the only Asian entry, with a vibrancy score of 222. As one of the world's largest flower gardens, displaying over 150 million flowers across 72,000 square meters, its spectacular arrangements—including a full-sized Emirates A380 plane covered in blooms—secure its position among the world's most vibrant gardens.

 

World’s Most Vibrant Gardens, According to Science
Powerscourt (left) and Herrenhausen Gardens (right). Photos by @powerscourt_estate, @herrenhaeuser_gaerten, and @sandika71.
World’s Most Vibrant Gardens, According to Science
Fairchild Tropical Botanic Garden.

 

In North America, the Fairchild Tropical Botanic Garden in Florida ranks as the region’s most vibrant garden. Spanning 83 acres, the garden is named after Dr. David Fairchild, a pioneering botanist who introduced thousands of exotic species to the country. With a lush forest, butterfly garden, palm collection, arboretum, and water gardens, this garden transports visitors to somewhere that feels far, far away from the USA. Regionally, the Fairchild Tropical Botanic Garden is followed by Biltmore Estate Gardens and Brooklyn Botanic Garden. 

 

World’s Most Vibrant Gardens, According to Science
Brooklyn Botanic Garden.

 

European Excellence in Garden Design

Europe's dominance in the global garden rankings is undeniable, claiming eight of the top ten positions. The UK alone is home to five of them! Aside from the already mentioned gardens, other notable European entries include France's legendary Versailles Gardens in thirteenth place with a score of 218, and Spain's Generalife Gardens with its Moorish courtyards and water features ranking fourteenth with 216 points.

 

These Are the World’s Most Vibrant Gardens, According to Science
Sir Seewoosagur Ramgoolam Botanic Garden, Mauritius and Kirstenbosch National Botanical Garden, South Africa.

 

The UK continues its strong showing beyond the top ten, with Cambridge University Botanic Garden and Dunrobin Castle and Gardens both tying at sixteenth place with scores of 215. Germany's Sanssouci Park and Gardens in Potsdam, the former summer palace of Frederick the Great, ranks twenty-first with a score of 211, while Glasgow Botanic Gardens follows at twenty-second place with 210 points.

What makes European gardens particularly vibrant appears to be the combination of formal design tradition with diverse plantings. The continent's long horticultural history has also produced gardens that balance architectural elements with carefully curated plant collections, which create visual compositions that maximize color impact throughout changing seasons.

 

These Are the World’s Most Vibrant Gardens, According to Science
Fitzroy Gardens in Australia.

 

A spokesperson from Premier Inn noted: 

“As we head into spring and then summer, there’s no better time to pay a visit to any of the world’s beautiful gardens and experience them at their most vibrant. With so many different styles of gardens to explore, it can be very relaxing to stroll through winding paths and admire both the blooms and the artistry that goes into creating them. Our research highlights just how rich in colour these spaces are, from the carefully designed floral displays at Kensington Palace Garden to the world-class plant collections at Kew and the striking landscapes of Inveraray Castle. With longer days and nature in full bloom, these gardens offer the perfect setting for a day out.”

 

These Are the World’s Most Vibrant Gardens, According to Science
Mapumelu Metropolitan Park Gardens, Santiago, Chile.

 

For travelers planning their next nature-focused getaway, this research provides valuable guidance on where to experience the most vibrant expressions of color that garden designers and nature combined can create. With spring unfolding across the Northern Hemisphere and gardens reaching peak bloom, there has never been a better time to explore these colorful places that showcase human creativity and the natural world's vivid palette. You can check out the study to learn more about these and many other vibrant gardens and their rankings.

 

Unless otherwise indicated, photos are by Premier Inn.

Poll

Which one is your favorite of the wonderful gardens in this article?

What do you think of this article?

YOU MAY ALSO LIKE

Can't get enough?

Subscribe to the newsletter, and get bedazzled with awesome flower & plant updates

Sign up