Brugmansia: A Drama Queen

By Marcia Kirinus, NC State Extension Master GardenerSM volunteer of Durham County

(Left to right) Buff colored Brugmansia gracing a home in Coimbra, Portugal. Bright orange Brugmansia, ‘Charles Grimaldi’ in Durham, NC. Pink Brugmansia beginning to open up in Durham, NC. (Image credit: Marcia Kirinus)


Brugmansia, known by some sinister common names such as Angel’s Trumpet and Devil’s Breath, embodies high drama in the plant world. With its foot-long, pendulous blooms that sway in the evening breeze and its intoxicating fragrance, it lures both humans and night-flying pollinators from mid-summer to late October. Its scent is so powerful that it has found a place in commercial perfumery. The color palette of its flowers is equally alluring, with blooms ranging from pristine whites to buff, peachy pinks, pale golds, muted oranges, and salmon. In full bloom, mature specimens put on a spectacular display, becoming the star of the garden late in the season when most things have stopped blooming.  However, these seductive flowers come wrapped in folklore, magic, and an unmistakable aura of danger.

Plant of the Night

The life cycle of Brugmansia’s flowers follows the rhythm of day and night. As the sun begins to set, its trumpet-shaped blooms unfurl, releasing a sweet and heady fragrance that fills the evening air. This gives Brugmansia another common name, the “Moonflower.” During the day, its flowers hang like sleeping bats, with their petals tightly closed, and no scent lingers. The timing of their bloom and fragrance production is under circadian control, which works well if you enjoy throwing cocktail or dinner parties on the back deck on a sultry autumn evening. It is also a welcome highlight on Halloween as trick-or-treaters come to your door and your orange Brugmansia is in full bloom. No other decoration needed!

(Left) Single orange Brugmansia planted at the front door greeting trick or treaters. It is next to a double flowered white Brugmansia. Planted below the orange tree is another plant in the same family; Nicotiana sylvestris. (Right) Single yellow flowering 30 foot Brugmansia tree on the back corner of the Melo House in Coimbra, Portugal. (Image credit: Marcia Kirinus)

Cloaked Pollinators

Placidula euryanassa.
(Image credit: Claudio Dias Timm CC BY-NC-SA)

When doing research for this article, I found conflicting information on pollinators. Most sources suggest something that flies around at night since that is when flowers open. Others say hummingbirds. Maybe all of the above depending on the species and geographical location, but it’s clear that we still don’t really know. A publication from the University of South Florida suggests that the dominant pollinators of B. suaveolens are most likely bats and night-flying moths. Butterflies also seem to play a role where B. suaveolens is a larval source for the butterfly Placidula euryanassa. Studies show that the caterpillars can consume the toxins without harm, storing the poisonous alkaloids in their bodies to ward off predators later in their life cycle.

The Weedy Side of Brugmansia

While Brugmansia’s flowers are dramatic, the plant itself can look weedy and unkempt when not in bloom. It is hardy in USDA Zones 7–10 and grows quickly, often reaching heights of 15 to 35 feet. It works well as a background shrub or small tree in garden design. Although Brugmansia is said to prefer full sun, I’ve had more success growing it in partial shade in my Durham, NC (Zone 8a) garden. Like most members of its family, Solanaceae, it likes water, which could be a reason to grow it in some shade. This plant only emerges when the soil warms, so it works well to plant spring and early summer-blooming flowers in front of it until it takes center stage in late summer through autumn.

Growing Brugmansia in My Garden

I first encountered Brugmansia on the roadsides of subtropical Brazil, growing under larger tree canopies. Its large, bell-shaped flowers in shades of white, pink, and orange captivated me instantly. Later, I saw it thriving in northern California gardens and decided to try it in my own garden in Durham, NC.

That was years ago when Durham, NC, was considered USDA Zone 7. Brugmansia is borderline hardy in Zone 7, making each winter a gamble. I eventually started planting the rootstock deeply, below the frost line, to protect it from frost. This delayed its emergence even more, but when the plant finally came up in late summer, it rewarded me with a spectacular display.

Today, I have two dependable Brugmansia plants—a double white and a single orange—that return each year. Interestingly, the orange one blooms earlier, just in time to avoid the first frost, which can otherwise cut short the flowering season. The white one is hit or miss depending on weather conditions. I hear the same from others that have these plants growing in Durham, NC. Apparently the flowers need a very long growing season to fully open.

A Freaky Family

Brugmansia is a member of the Solanaceae family. This family blurs the lines between food, poison, and magic, with plants like Solanum lycopersicum (tomato), Capsicum (pepper), Solanum tuberosum (potato), Nicotiana (tobacco), Atropa belladonna (belladonna), and Hyoscyamus niger (henbane).
The family brews a veritable chemical cauldron of both desirable and deadly compounds referred to as tropane alkaloids. These include nicotine (Nicotiana), solanine (Solanum), capsaicin (Capsicum), atropine (Atropa), scopolamine (Datura), and hyoscyamine (Hyoscyamus)—chemicals that have been used as healing drugs in small doses, misunderstood or abused as addictive substances, and used as pesticides and warfare agents (e.g., sarin) in toxic doses.

(Left to right) Other relatives of Brugmansia that belong in the Solanaceae family: Nicotiana sylvestris, tomato fruit Solanum lycopersicum, Atropa belladonna flower; Datura wrightii. (Image credit: NCSU Plant Toolbox– peganum CC-BY-SA 2.0; Böhringer Friedrich CC BY-SA 2.5; Puusterke CC BY-SA 4.0; Kenraiz CC BY-SA 4.0)


Dangerous Beauty

Every part of Brugmansia is toxic. It contains dangerous alkaloids, like scopolamine, which can induce hallucinations and, in larger doses, have fatal effects. These alkaloids have historically been used in rituals to induce altered states of consciousness or to connect with the divine.

Shrouded in Shadowy Lore

Brugmansia is steeped in mystery and legend. Its downward-pointing flowers are said to serve as a bridge to the afterlife, with folklore suggesting they can draw spirits from graves. In a haunting twist, legend has it that sleeping under a Brugmansia plant may summon angels to claim your soul before you wake. The fragrance is reputedly narcotic. How true any of the stories are is questionable but perhaps telling. Embedded in the legends are nuggets of truth around the toxicity of the plants.

Brugmansia, an intoxicating beauty with folkloric connections, makes it a fitting plant for the Halloween season. Its nocturnal habits, eerie association with spirits, and dramatic blooms bring mystery and enchantment to any garden, especially under the October moon. However, don’t forget the danger of its deadly properties. Inhale its perfume, but keep your distance—it can kill you.

Resources and Additional Information

  • Kew Gardens, University of Chicago press: A horticultural, botanical and ethnobotanical tour-de-force: the first comprehensive monograph on this genus: https://www.brugmansia.us/huanduj/

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Bringing Plants of the Piedmont back to Downtown Durham

By Eric Wiebe, NC State Extension Master GardenerSM volunteer of Durham County

A once neglected site, Rotary Plaza in downtown Durham comes alive in July 2021 with sunflowers that produce seeds for wildlife. Millet, a grain used here in the design and novel to many urban dwellers, also serves as a great food source for gold finches and other birds. (Image credit: Ben Bergmann)

Have you noticed changes to the plantings in downtown Durham over the past few years? If not, you need to head on down, walk around, and appreciate the transformation of the many of the city-owned green spaces. This transformation, and the strategies behind it, point to a new way of thinking about our relationship to the landscape, both in urban settings like downtown, but also in our own yards. 

I had the pleasure of both walking around downtown Durham with and then sitting down and talking to Ben Bergmann, the architect of this transformation. Ben was hired by City of Durham in September 2020 and charged with re-envisioning and elevating horticulture in downtown Durham, including creating a Downtown Horticulture Crew within Landscape Services. Ben brought a widely varied background to this position, trained with BS, MS, and PhD degrees in plant sciences, and working as everything from small business owner and farmer to tropical agroecologist and research scientist. One thing all this work has in common is plants and his great love of them. Ben feels this broad range of experiences has helped prepare him for a job that has him applying both the art and science horticulture to a municipal government position with its many constraints and opportunities and multitude of stakeholders. 

“When I started, I realized I needed a mission statement to clearly and concisely communicate to my supervisors and the public what I and my unit in government is doing.” He stated that his landscape design and management are guided by the goal of enhancing

  • Environmental sustainability
  • Programmatic stability
  • Aesthetic appeal
  • Service benefits

He notes that it is important to recognize that these categories are not mutually exclusive, but each has a role to play in his horticultural work supporting the living landscape in downtown Durham. 

Designing Sustainably

Ben explains that a crucial re-orientation is to start planning a landscape by thinking about how it can best align with the ecosystem, and that means starting with native plants that can be used. “For urban contexts some people would say that there is nothing native to these downtown spaces, and they will use this as an ‘out’ to plant whatever they want. I don’t embrace this–something was native, originally, in these spots. Many times these native plants can and will grow and thrive in these spaces.”

When Ben thinks about which native species to use, he first looks for plants native to the North Carolina Piedmont and secondarily to the larger Piedmont of eastern U.S. He notes, however, that it is very important to select plants with a long-range vision. That is, when accounting for global climate change, plants that are going to be here in 20 years may very well be in an environment that looks more like the southern Piedmont, our coastal plains, or South Carolina.

(Left to right) By selecting plants that can cope with a warming environment, Bergmann installed dwarf palmetto (Sabal minor), a plant typically associated with climates in the native ranges east and south of Durham, NC, and shown in green on the USDA’s zone map. (Image credit: Ben Bergmann; https://plants.usda.gov)

While native species take the lead when planning bed renovations, Ben states that non-native plants can still play a role. Returning to his guiding principles, non-natives can help fill functional gaps that might be hard to resolve in the short run with native species. Similarly, there are times that a spot planting of a non-native will help achieve a particular aesthetic goal by providing highlight color, texture, or architecture.

(Left to right) Before, a non-imaginative flag pole bed at Durham Parks and Recreation building included a highly invasive and exotic species: Nandina domestica. After a re-imagining, the same bed demonstrates there is a place for non-native plants alongside natives, especially during transition phases. (Image credit: Ben Bergmann1

Because the legacy plantings downtown were almost 100% non-native, it means that during a bed’s transition period, some non-natives may be left to help visually and functionally stabilize the bed until new, native plants can get established and then take over. Among other things, the non-native plants retained just for the transition can provide shelter from the sun and wind during establishment.

(Left) The process of establishing an urban prairie at the Rotary Plaza began in September 2020 with beds filled with weeds and remnants of long past garden attempts. (Middle) In March 2020, the the beds are full of cover crops: crimson clover, a nitrogen fixer that is great for pollinators in early spring, and winter rye, which has high biomass production and deeply penetrating roots. The intricate planting pattern reflects intentionality and provides visual interest. (Right) By July 2022 the Piedmont Prairie Garden at Rotary Plaza is realized and chock-full of sustainable native plants. (Image credit: Ben Bergmann)2

Even given how much he has achieved is such a short time, Ben still takes the long view when planning and planting. For example, cover crops have been used in very purposeful ways in areas such as the Rotary Garden. During the initial transition of this space, cover crops were planted and maintained in ways that not only helped build the soil, but created visual interest. Over time, the cover crops matured and eventually replaced with native perennials, creating an evolving horticultural narrative in this space. As Ben said, “Some [landscape] designers shy away from transitions–they want to ‘put a tarp over it’ until it has reached its final phase. I don’t shy away from transitions; they are an important part of my plans.”

Ben notes that using select non-native plants, cover crops, and other annuals allows him to more easily use seeds, plugs, and small plants in the beds. In the case of herbaceous perennials and woody plants, besides being less expensive, younger, smaller plants will typically develop more robust root systems and quickly outgrow their bigger counterparts.

Addressing Urban Challenges

Ben was quick to remind me of the many contextual limitations and challenges the Downtown Horticulture Crew faces daily that home suburban gardeners rarely have to contend with. For example, CPTED (Crime Prevention Through Environmental Design), is an important set of guiding heuristics that often preempts other design considerations. In addition to making sure plantings do not screen illicit activities, it also disallows designs that interfere with security cameras or impair pedestrian safety, including driver site lines at street crossings. 

The center of the Chapel Hill Street parking lot is a perfect example of an urban heat island with even hotter microclimates where landscapes are needed. (1) In January of 2022, the lot was cleared of weeds and other unhealthy, dated, and non-native landscape plants. (2-5) The view in 2024, after Bergmann and his team revitalized the area with an assortment of heat-tolerant natives. (Image credit: Ben Bergmann)3

Most of the beds Ben and his crew manage are surrounded by heat absorbing asphalt and concrete and buildings with glass that intensify solar radiation by reflecting light onto them. This creates heat islands much hotter than in surrounding communities. In addition, tall buildings funnel wind through these spaces and block rain, further desiccating plants. 

Humans also are unhelpful, by walking on, driving over, or otherwise physically challenging plantings. Some soils are more like landfill or construction sites, and many have the negative impact of overuse by dogs on their walks. Even with these challenges, Ben has identified quite a few native species that are up for environmental extremes while still fulfilling functional and aesthetic goals. Not surprisingly, he is currently exploring the possibility of a demonstration xeriscape-inspired bed. This one may very well include some non-native plants more typically found in desert environments.

Educating the Community

Ben understands that an important part of his job is educating not only the workers and residents of downtown Durham but all city residents and visitors as to a new way of envisioning landscapes. Landscapes that, while they exist in a human-built environment, much more clearly reflect real ecosystems of the NC Piedmont. This means not only planting predominantly native species but planting them in soil nourished by natural mulches created by the plants themselves rather than imported, dyed wood chips. He also allows the plants to go through full cycles, creating visual landscapes that sometimes predominate in browns, grays, and blacks, as much as greens, yellows, and reds. 

(Left to right) The Piedmont Prairie Garden at Rotary Plaza in early January with the last vibrant colors and in late February, when the remaining plants still create an almost black-and-white picture. (Image credit: Ben Bergmann)4 (Below) By designing a phenology calendar for his plantings, Bergmann pays careful attention to nature’s timing. This tool helps gardeners know when to plant, specific bloom times, and when colors, textures, and other elements are present throughout the seasons. For a closer view, click on the link for an electronic version of the calendar in our Resources and Additional Information section below.

He is heartened that there is a growing critical mass of professionals helping him in this educational work. The City of Raleigh and Wake County has been hard at work creating plantings that reflect this same vision. He also has strong allies at Duke Gardens, where Annabel Renwick, has provided both inspiration and plants for some of the bed designs. Ben recognizes that it will take a while both for his beds to reach the final stages of their design vision and for Durham residents to embrace this new look, but he has already received lots of positive feedback for his renovated beds. It will also be up to Durham Master Gardeners, and committed gardeners everywhere, to help continue to educate the public and support this work.

Plant lists for featured Downtown Durham Sites

1–The planting design at the Parks and Recreation administration site include a mix of natives (*) and non-native plants: threadleaf coreopsis* (Coreopsis verticillata), creeping phlox* (Phlox subulata), eastern ninebark* (Physocarpus opulifolius), panicle hydrangea (Hydrangea paniculata), lantana (Lantana camara), coleus (Solenostemon scutellarioides).

2–Plants in the Piedmont Prairie Garden at Rotary Plaza include swamp milkweed (Asclepias incarnata), blue mistflower (Conoclinium coelestinum), purple coneflower (Echinacea purpurea), Joe-Pye weed (Eutrochium fistulosum), Spotted Joe-Pye weed (Eutrochium maculatum), common sunflower (Helianthus annuus), scarlet rosemallow (Hibiscus coccineus), larger blue flag iris (Iris versicolor), cardinal flower (Lobelia cardinalis), switch grass (Panicum virgatum), garden phlox (Phlox paniculata), hoary mountain mint (Pycnanthemum incanum), brown-eyed Susan (Rudbeckia triloba).

3–Center of Chapel Hill Street parking lot showcases the following native plants: sedge (Carex bicknellii), purple love grass (Eragrostis spectabilis), Elliott’s lovegrass (Eragrostis elliottii), scarlet rosemallow (Hibiscus coccineus), swamp rosemallow (Hibiscus moscheutos), Virginia sweetspire (Itea virginica), tulip poplar (Liriodendron tulipifera), black-eyed Susan (Rudbeckia hirta).

4–The Piedmont Prairie Garden at Rotary Plaza in late February still offers color, texture, and winter interest. They include climbing aster (Ampleaster carolinianus), scarlet rosemallow (Hibiscus coccineus), switch grass (Panicum virgatum), hoary mountain mint (Pycnanthemum incanum), white goldenrod (Solidago bicolor), showy goldenrod (Solidago speciosa)–with touches of hopeful green, beardtounge (Penstemon digitalis), eastern beardtounge (Penstemon laevigatus), stoke’s aster (Stokesia laevis), adam’s needle yucca (Yucca filamentosa).

5– See below for Bergmann’s list of natives that are tried-and-true performers for Durham and central North Carolina.

Resources and Additional Information

Piedmont Prairie Garden at Rotary Plaza Bloom Time / Color Calendar (electronic version)

https://go.ncsu.edu/piedmontprairiecalendar

NC State Extension on landscaping for wildlife with native plants in urban environments

https://content.ces.ncsu.edu/landscaping-for-wildlife-with-native-plants

North Carolina Native Plant Society’s list of recommended native species

NC State Extension on all things native plants

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