Episodes
Crossover alert! This Horticulturati episode is a twofer. In part one, we check in about the busy fall planting season over chocolate bread and mulled wine. After many months of Zooming, we’re back to in-person, social-distance recording from Colleen’s backyard! As we test out our new remote podcasting equipment, the conversation drifts from orthopedic inserts to bulb-mania to the monk parakeets of Austin. Part two is our guest appearance on an episode of another great planty podcast, One To...
Published 11/07/20
On this mega-episode of the Horticulturati, we’re tackling garden design--our approaches, our anxieties, and our gripes about “expert” sources of mystifying advice and misleading photography. Garden design books are rife with the jargon of art theory. How well does this translate to the living medium of plants in the landscape? Google Image Search puts pictures of every plant imaginable at our fingertips, which is great...but also not so great. Hashing it out at length, we agree on some basic...
Published 10/07/20
Why are we putting explosives on our plants? On this episode, Colleen charts the history of ammonium nitrate, the synthetic fertilizer that propelled the rise of industrial agriculture in the 20th century--cheap to manufacture, but spectacularly costly in terms of lives lost. This highly explosive compound has caused some of the worst industrial accidents of all time (Oppau, 1921, Texas City, 1947, Toulouse, 2001, West, Texas, 2013, Tianjin, 2015, and Beirut, 2020) and was the terrorist...
Published 09/19/20
Turtle rabbit. Shell possum. Roadkill. Whatever you call it, the nine-banded armadillo is a mysterious, ancient, and unfairly maligned mammal. Find out everything you ever wanted to know (and more) about this Texas icon. Leah traces the armadillo’s bizarre migratory history, its role in medical research, and its rise as a symbol of the Austin music scene. We’ll bust some armadillo myths, meet some famous champions (including naturalist Roy Bedichek and artist Jim Franklin) and discuss the...
Published 08/23/20
Yes, it's another cross-posted episode! On this Horticulturati, we dive into the "seeds from China" story and discuss the implications and ramifications in the context of the political moment, which brings us back to an endlessly debatable question: is garden "nativism" xenophobic?  Please subscribe to the Horticulturati feed to get all the episodes! For more info or to drop us a line, visit our website.  Mentioned in this episode:  Central Texas Seed Savers; Press release from...
Published 08/08/20
Hothouse is returning from hiatus! From here on out this podcast feed will be all Hothouse, so if you want to keep hearing The Horticulturati, please subscribe to that feed HERE (for Apple Podcasts) or HERE (for Spotify).   Crape myrtles are blooming all over the place and Leah is DISGUSTED. What’s triggering this Lagerstroemiaphobia? Perhaps it's not about the crape myrtles at all, but rather the lingering demons of her past in exurban hell. Next, Colleen reports on a storied gourd that...
Published 06/26/20
Please donate to The National Bail Fund Network! On this Horticulturati, Colleen teaches us the best way to build a compost pile. Leah forages far and wide and lives to tell the tale.  Visit our website for images from this episode.   Mentioned:  The City of Austin’s Home Composting Rebate Program; Mantis Compostumbler; Soil, a novel by Jamie Kornegay; The Telluride Mushroom Festival; The WIld Wisdom of Weeds by Katrina Blair; Turtle Lake Refuge in Durango CO; Stalking the Wild...
Published 06/08/20
On this Horticulturati, we bring you stories of adaptation and change. Leah has been studying up on butterfly holometabolism -- that is, complete metamorphosis -- with assistance from her niece, nephew, and Vladimir Nabokov. Colleen describes the history of Victory Gardens, from World War I to the present day, and outlines three ways to start a “pandemic garden” of your own. But first: we revisit the sleeper masterpiece that is the Secret Life of Plants doc (1979), which is only available in...
Published 05/17/20
What’s the deal with mulch? Why do we do it? Where does it come from? Mulch is a noun, a verb, and--for many--a pile of mystery. On this episode, we delve into mulch's history, weigh in on the bag vs. bulk debate, and call into question the whole dang practice. Roll up your sleeves and grab a shovel, because your hosts are here to deliver many, many cubic yards of mulch facts!  Mentioned in this episode: Austin Resource Recovery Recycling Center (currently closed due to COVID); Rodale's How...
Published 04/30/20
How is the global pandemic impacting local food systems? We interview @Hallie_Casey of Sustainable Food Center and On To Grow On podcast to find out. We discuss food supply chains, how local farmers’ markets are adapting, and who counts as “essential” workers during a Shelter in Place Order. Then we dig into a more fun topic: soil!  How do you know if your soil is healthy? What's the role of soil in regenerative agriculture? Lastly, we introduce a segment called the “Gardener’s Gauntlet,” in...
Published 04/06/20
Best wishes to everyone! Here is a little plantastic escapism to entertain you. [We recorded this episode on 2/28 and added a little corona check-in intro on 3/21. Episode begins around 4:19.] Can plants “hear” music? What would plant-generated music sound like? On this episode, Leah and Colleen attend “The Secret Song of Plants,” the release party for an album of the same name by music therapist Andrea Cortez. Accompanying Andrea is cellist Henna Chou and… a pothos ivy?!?!  Join us as we...
Published 03/22/20
How did the invention of time-lapse photography revolutionize our understanding of plants? Leah checks in with Charles Darwin and Barbara Streisand on this subject. Colleen explains how to get certified as an arborist through the International Society of Arboriculture, and brings us up to speed on some Facebook drama. But first, garden updates: it's been a bad year for the roses. Watch the time-lapse videos from the episode at ww.horticulturati.com. Email us at [email protected]. Our...
Published 03/06/20
Shake off those umbrellas! On episode 2 of The Horticulturati, Austin-based garden designers Colleen Dieter and Leah Churner discuss  Central Texas’ mercurial climate. Specifically, the rain. And the lack thereof. Leah explains how longitude is destiny along the Hundredth Meridian (or is it the 98th?), and Colleen examines how “Xeriscape” became “Zeroscape.” But first, a garden update: Leah’s ripping out landscape fabric and Colleen has a misadventure with a skid-steer.  Email us at...
Published 02/21/20
On the premiere episode of The Horticulturati, Austin-based landscape designers Colleen Dieter and Leah Churner discuss the majesty of Joshua Trees and the thorns of Martha Stewart. But first, it's gardeners' corner: Colleen plants an orchard for wildlife and Leah buries cardboard to build soil.   Future episodes will be posted on the Horticulturati podcast feed, so please subscribe to The Horticulturati so you don't miss an episode!  Email us at [email protected] and visit us at...
Published 02/07/20
Hi Hothouse listeners! Hothouse Season 2 is still in the works, but guess what! I'm launching a spinoff podcast: The Horticulturati!  The Horticulturati is a biweekly gardening talkshow I'm cohosting with my friend, and repeat Hothouse guest, Colleen Dieter. We're a couple of "designing women" here to fill you in on the ups and downs of landscaping life and teach each other about horticultural history and sundry fun plant facts.  Episode 1 is out February 7! Please subscribe to The...
Published 02/03/20
The upcoming season of Hothouse is devoted to climate change. I'll be talking to activists, artists, farmers, and journalists about the new normal that we face in 2019. How is climate change already affecting our lives? What can we do to limit global warming? And how are each of us reckoning, in our own personal ways, with the future? Stay tuned and stay in touch! [email protected] "Belview" by C. Scott is licensed under CC BY 3.0  
Published 03/12/19
On this episode, we’re taking an intimate look at the the most domesticated plants of all: houseplants. My guest, Jane Perrone, is a London-based journalist and the host-producer of the indoor gardening podcast On The Ledge. We’ll discuss Jane’s background, some myths and misconceptions of container gardening, and the human tendency to anthropomorphize our houseplants. At the top of the show, I’ll dive into the revealing history of the Aspidistra elatior, a houseplant once so iconic it was...
Published 11/15/18
Colleen Dieter, co-founder of the the Central Texas Seed Library, talks about how saving, swapping, and sharing seeds can help us build community, reclaim lost agricultural knowledge, and preserve crucial genetic diversity in our global food supply. Thanks to Colleen and a group of other volunteers, a seed library is coming soon to Austin’s fabulous new downtown Central Library. Here, anybody can browse and take home free, open-pollinated seeds to grow in the garden. CTSL is hosting a seed...
Published 09/21/18
In Part 2 of the series “Nothing Natural About Capitalism,” Leah talks to Austin-based activist Ryan Rosshirt about permaculture design and the challenge of building a society that supports meaningful work. Like so many Americans, Ryan was jolted into political action by the rise of Donald Trump. He quit his desk job before the 2016 election to focus full-time on canvassing for social justice and environmentalist issues. At the same time, he discovered a passion for gardening; a small...
Published 09/17/18
Capitalism: Can't live with it, can't live without it! Or can we? And what is the connection between capitalism and what we eat, how we work, and who bears the impacts of climate change? For a lot of us, the ecological consequences of our economic system are clear: factory farming, algae blooms, pollinator decline, and the Trump Administration's evisceration of the EPA. What, if any, are the alternatives? In this two-part series, "Nothing Natural About Capitalism," the Starship Hothouse will...
Published 08/22/18
On this episode, we'll examine the relationship between natural history and social history. Join Leah as she sits down with park ranger LaJuan Tucker to talk about the conservation of urban wildlife, and how changing societal attitudes determine how we relate to our landscapes. LaJuan will explain how, in recent years, Austin's Parks and Recreation Department has implemented a new mandate to protect pollinator habitats, even when that means sacrificing the "manicured" look of the park in...
Published 07/07/18
Farmer-florist Gretchen O'Neil dishes the dirt on growing cut flowers. Gretchen is the founder of Petals, Ink, a floral design studio, mobile flower truck, and women-run farm in Manor, Texas. She'll tell us about the highs and lows of the farming life -- extraordinary beauty and terrible uncertainty -- and explain how working the land has helped this New England native find a sense of seasonality in balmy Central Texas. Of course, she'll also recommend a whole bunch of varieties you can plant...
Published 06/14/18
On this episode, we venture into the strange and mysterious kingdom of fungi. Join Leah as she sits down to talk mushrooms with mycologist Daniel Reyes, the founder of MycoAlliance, a science and education company that offers classes in mushroom propagation and conducts research at an off-the-grid laboratory in a nature preserve in east Austin. Daniel is a specialist in Mycoremediation, the practice of using fungi to clean up toxic pollution.  We’ll start with some basic fungi facts (What is...
Published 05/24/18
Leah sits down with Linda Lehmusvirta, the producer of KLRU’s Central Texas Gardener, to find out what goes on behind the scenes of this long-running, award-winning public television show. Linda’s been producing CTG since the beginning, in the 1980s, when it began as a live call-in show. Viewership has now expanded beyond its namesake region, as CTG now airs weekly on PBS stations from Amarillo to Corpus Christi, and from Myrtle Beach to Tucson. Over the years, Linda has filmed hundreds of...
Published 05/09/18
Join your host, Leah Churner, as she sits down with Jenny Peterson, author of The Cancer Survivor's Garden Companion (St. Lynn's Press, 2016) to talk about the therapeutic power of gardening. As a landscape designer, urban farmer, and breast-cancer survivor, Jenny has unique insight on the healing potential of outdoor spaces. She explains how to find relief in the garden, whether you're experiencing illness, stress, grief, anxiety, or depression. For many reasons, working with plants can help...
Published 04/25/18