In the face of an extinction crisis, one maverick botanist is on a mission to preserve some of the most endangered plants.
feel eerily similar to flesh. Tentacular tails hang from their petal-like sepals, which are shaded maroon, coral, and yellow—the palette of rotting fruit. A fly could mistake them for a feast.
For tens of millions of years, this peculiar orchid, native to Colombia’s fast-disappearing cloud forests, has survived thanks to its power to attract a pollinator. Today that pollinator is a 64-year-old man in reading glasses. —among the world’s largest private, noncommercial collections—but right now, in a greenhouse outside of Medellín, Colombia, he is focused on this one alone.
He gently pinches one of its tails, tilts its face upward, and with the tip of a wire, moves a pinhead of pollen from the center of one bloom to another. If this pollination process takes, a pod will form, filled with as many as a million dustlike seeds. Piedrahíta will pluck it, wrap it in foil, and deliver it to researchers in Medellín, who will try to grow this wild, wily plant in a lab.
With habitat loss and black-market trade threatening extinction for an estimated half of the world’s 30,000 known orchid species, private collections like Piedrahíta’s offer an invaluable resource: genetic stores for research, propagation, and potential reintroduction. The only problem? Private collectors are often guarded, protective of hard-won knowledge about cultivation techniques and hesitant to invite scrutiny over where their specimens came from.
Orchids found at Piedrahíta’s Alma del Bosque reserve, include the Rothschild’s slipper orchid—native to Borneo’s Mount Kinabalu, where it is critically endangered. Venus slippers like thisThe orchid hybridNot Piedrahíta. In a subculture of collectors who prize orchids for their rarity, he is devoted to coaxing some of his rarest specimens into abundance.
At Alma del Bosque—or “soul of the forest,” the arboretum and education center he opened last year—he is pollinating orchids and sharing his seeds and techniques with messianic zeal, part of a vanguard of collectors aiming to undermine black markets and ensure a supply of seedlings for future restoration projects. Partners at three Medellín labs are using his seed stock to propagatethat have never before been mass-produced—“the only chance,” Piedrahíta says, “to not lose these species.
” A commercial flower grower for the past 30 years, Piedrahíta caught orchid fever in the early 2000s, not long after he and his wife founded a hydrangea farm in the town of La Ceja, a hub of Colombia’s cut-flower industry. The country is home to nearly a fifth of the world’s orchid species, more than any other country, and most of its varieties are epiphytes—plants that attach to trees using specialized roots rather than growing out of soil.
Piedrahíta started noticing them on birding trips in the Colombian wilds and was captivated by their cunning adaptations. Some masquerade as female insects so convincingly that males attempt to mate with them, emerging dusted in pollen. Others lure pollinators by mimicking the scents of chocolate, rotting fruit, or carrion.
Piedrahíta was fascinated by the diligence orchids demand from a grower: In the time it may take a loblolly pine to grow two stories tall, an orchid seedling might produce a single flower.
“When it finally blooms,” Piedrahíta says, “it truly feels like magic. ” His first time at a regional orchid show, he bought out a vendor’s whole booth—some 250 plants. With hydrangea profits funding his new hobby, hundreds of orchids became thousands, acquired from commercial growers, traded with other obsessives, and occasionally rescued from a fallen branch. Today Piedrahíta estimates his collection represents what he calls a “genetic bank” of some 3,500 species—around a tenth of the family Orchidaceae.
After years of keeping his orchids in greenhouses, he unveiled Alma del Bosque last summer, a massive pavilion beneath a 52-foot roof, with tours available for the public. Like Jurassic Park, its big black doors swing open to reveal an engineered wonderland: 11,000 square feet of tiered gardens and displays, with companion plantings and water features to create microhabitats in which a range of orchids can thrive.
Alma del Bosque is also the headquarters of Piedrahíta’s project to cultivate a new generation of conservation-minded orchidists. Over the past five years, he’s taught hundreds of students, in person and online, the orchid world’s once guarded secrets, driven by the belief that every new grower cultivating uncommon orchids is helping disincentivize poaching in the wild. With his mentorship—and his pollen and seeds—several of his students have gone on to launch their own nurseries.
One of them, 24-year-old Santiago Arango, now runs Medellín’s Culto Orquídeas, with a staff of four, some 9,000 plants for sale, and customers all across Colombia.
“People prefer to buy plants from the lab than to buy plants extracted from nature,” Arango suggests. Meeting that demand, he says, “is the responsibility of all of us commercial cultivators. ” Piedrahíta also provides his seeds to researchers at Medellín’s CES University who are using them to develop techniques for in vitro propagation of rare orchids. Their current focus is a showy ivory specimen known as the white nun, Guatemala’s national flower.
It was poached nearly to extinction in most of its native habitat, although a reintroduction program is underway in Guatemala, using seedlings grown by a collector there. Piedrahíta hopes lab-grown plants made from his seed stock can help turn the white nun from a poacher’s prize into a nursery staple—and that the same techniques might eventually support restoration efforts for other species in Colombia.
Piedrahíta displays his collection at Alma del Bosque, the sanctuary he opened last year in the western Colombian Andes. Using lab-grown orchids to replenish wild populations is still new science, tricky in part because the plants need sufficient genetic diversity to reproduce. But there have been glimmers of promise. In Florida,reintroduced to the Big Cypress Basin in 2018 have survived though not yet reproduced.
In the United Kingdom, just last summer, a restoration program active since the 1990s yielded that country’s first wild-grown lady’s slipper orchid in nearly a century. Piedrahíta is taking a long view, preserving threatened species to lay the groundwork for when the science catches up.
“I’m a stubborn pioneer,” he says. He has learned that loving orchids requires nothing if not patience.advance at
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