Skip to content


Your cart is empty

Article: The Yellowstone Collection

Members of Caswell-Massey and Yellowstone Forever hiking through Yellowstone Park

The Yellowstone Collection

Celebrate Earth Day All Month

Gift with purchase

Get 1 Free Yellowstone Discovery (7.5mL) Fragrance for Every $30 You Spend now until 4/28/24! No code necessary, must add Discovery Fragrance of your choice to cart in order to redeem.

Scents from the American West

Embrace the splendor of the great outdoors with our Yellowstone Collection. Featuring 3 fragrances inspired by three representative regions of Yellowstone National Park, this collection provides an olfactory journey through America's first national park.

Each of the fragrance blends included in our Yellowstone Collection contain nature-identical absolutes that reflect the region of the park where the source species grow. Some plants grow in wide regions of the park, while others are very sensitive to microclimates, geothermal features, and seasonal fluctuations, and only grow in very specific areas of the Park. Notably, changing climate dynamics have affected some of the plant species as environments across the Park have altered in response to climate changes, resulting in some of the plant species becoming rare or endagered. With this collection of fragrances, a scent profile including these special plants has now been captured, recreated, and recorded to serve as testament to the Park's natural beauty—by way of scent—for generations to enjoy.

Caswell-Massey Yellowstone Collection: bird's eye photo taken of Yellowstone Lake

Preservation, Conservation & Protection of Environment

Origins of the Yellowstone Collection

We at Caswell-Massey developed the the Yellowstone Living Floral project with International Flavors and Fragrances (IFF) in 2014 to study select plant species unique to Yellowstone National Park as directed under IFF's receipt of a scientific research grant.

The project centered around application of the Living Floral scent-capture technique. By applying the Living Floral technique, our research team was able to capture the scent signatures of sixteen quintessential Yellowstone plant species, enabling the team to recreate “nature identical” scent molecules using sustainably sourced materials, without damaging or harming the rare botanical species. These nature-identical molecules were then refined by perfumers for the collection.

Caswell-Massey: Hand holding glass bulb around wildflowers in Yellowstone National Park that is part of the scent-capture technique

Fragrance Capture Technique

Living Floral

By applying the "living floral" fragrance-capture technology, the scent signatures of unharvested plants can be identified (producing something akin to sheet music), enabling perfumers to recreate “nature-identical” scent molecules using sustainably sourced materials (the instruments, to continue the metaphor), without damaging or harming rare botanical species. These nature-identical molecules are then reimagined by perfumers (the conductors) to create colognes and perfumes (the finished symphonies).

Yellowstone Fragrance Capture

Caswell-Massey: Glass bulb from scent-capture technique placed on top of yellow wildflowers
the 2019 yellowstone fragrance capture. The team of scientists and yellowstone national park rangers walking to find flowers
the 2019 yellowstone fragrance capture. Two people kneeling around a glass globe placed around a purple flower to capture it's scent.

Journey Through the Park:

Old Faithful Geyser

Old Faithful Geyser erupting in Yellowstone National Park

Old Faithful is quintessential Yellowstone. At Old Faithful, there are primal, magical events occuring: Bison own the geyser basin, and geysers go off regularly every day, sometimes spontaneously. In the spring, you can get glimpses of grizzly bears strolling the geyser basins looking for winter kill and wolves passing through. It is a place where anything can happen, where you can at any moment, if you are observant, glimpse a bit of nature that you would otherwise never see.

Old Faithful has a wide range of flora. An abundance of Sagebrush, Blue Lupine, Buckwheat; and gorgeous early season blooms of Larkspur (Delphinium nuttalianum), Monkeyflowers (Mimulus guttatus & Mimulus nanus), Steershead (Dicentra), Sierra uniflora sanicula graveolans, Lomatium triternatum (Biscuitroot). Old Faithful is another area of the park known for early season blooms thanks to the thermal features warming the ground. In addition to the amazing terrestrial plants, the Firehole River is a major feature contributing to Old Faithful so the smell of water is always permeating the air. In the river grows an aquatic hybrid only found in that river and in one other place in the world: a non-thermal water in Michigan! The aquatic hybrid has no scent of course but they add to the allure of the area being iconic for “primal moments you can only see here."

Journey through the park:

Lake YEllowstone

We now arrive at Lake Yellowstone, which is at the heart of the Park. Shrubby Goldenweed is specific to higher elevations and areas around Lake Yellowstone. The smell is similar to another common species found in the park, Curly Cup Gumweed, and it is one of the unsung heroes of the native plant community. Shrubby Goldenweed is able to compete with nonnative (invasive) species, and has held on well in the park, growing cheek and jowl with Knapweed. Curly Cup Gumweed is also prevalent in Mammoth, away from the large geothermal features, and in the open range towards Tower Fall. Silky Crazy Weed and Mountain Forget-me-Not are specific to high elevations above nine thousand feet, found in these high elevation areas near Lake, Canyon and Tower.

The Lake is known for Sand Verbena which is a type of Verbena that does not grow anywhere else in the world. It is threatened by a range of issues that are putting this rare species at risk of extinction. Yellowstone Lake is an incredibly large body of water in the interior of the park, and a major destination for visitors in the Summer months. There are lots of grizzly bears in the region around the Lake chomping on native plants including Camas, Yampah, and Sedges. Due to its interior location and high elevation, it’s generally cooler and feels very alpine with mountain fresh air and undertones of water. There’s always a breeze—it’s where you go to cool off on really hot days. 

Journey Through the Park:

Mammoth Thermal Terraces

Mammoth is known best for its spectacular Terraced Thermal features of course. Besides the thermal sulfur smell, there is a beautiful fresh water smell in the region and a scent of hay grass in the summer. Even though it is farther north, the flora in Mammoth generally bloom early since it is the first part in the park to lose snow.

Flora in Mammoth is characterized by gorgeous Balsamroot (Balsamorhiza sagittata) blooms in June. Early in the season, Desert Primrose (Oenothera cespitosa) blooms at night and is so very fragrant to attract the night pollinators. Similarly, Evening Star (Mentzelia decapetala) blooms around Mammoth at night and is very floral. Those plants are not really found in other places at the park. Of course there is lots of sagebrush in Mammoth and later on in the season, it tends to feel really hot, especially walking around the terraces, and you start to really relish the cool evenings. The terraces have beautiful blooms of Larkspur (Delphinium nuttalianum).

Partners in Research & Sustainability for Future Generations

To complete the research project, Caswell-Massey looked to Yellowstone Forever, the official nonprofit partner of Yellowstone National Park, to coordinate the team's work with the help of official botanists of Yellowstone National Park. “This partnership is a great example of corporate stewardship and research that will strengthen education and preservation efforts in Yellowstone for years to come,” said Yellowstone Forever President & CEO Heather White. “We’re delighted that this unique new collection of products will introduce many people to this wonderful park and help share the treasures found within it.” 

After our initial expedition, we spoke with Heidi Anderson, the Yellowstone Park Botanist, to reflect on some of the botanical species at Yellowstone, and the meaning of these collections of florals to her, in her experience at the Park. The species in her descriptions are just a few of the species included in the blended fragrance formulations.

Caswell-Massey is proud to support Yellowstone Forever in celebrating the flowers and fauna that are part of the unique heritage of Yellowstone National Park through our Yellowstone Collection. Purchase of these products supports Yellowstone Forever’s mission of engagement and support through education and fundraising for the park, to ensure Yellowstone remains an incredible resource for generations to come. 

Yellowstone Forever logo, official nonprofit partner of Yellowstone National Park

more about

Yellowstone Forever

Yellowstone Forever is the park’s official education and fundraising nonprofit partner, operating eleven educational Park Stores, the Yellowstone Forever Institute, and a worldwide community of Yellowstone enthusiasts who have made a financial commitment to fund visitor education and park preservation.

The Yellowstone Forever Institute introduces thousands of students to the park’s natural wonders. Programs range from one day to three weeks in length, and highlight the park’s amazing wildlife, geothermal areas, rich history, and awe-inspiring wilderness. Visit

Caswell-Massey: Image of Old Faithful Geyser erupting