Podcast Review: Native Plant Podcast

Always on the lookout for more podcasts to listen to, I somehow stumbled upon Native Plant Podcast. I wish I could remember the rabbit hole I went down that brought me to this masterpiece, but I can’t. What I do remember is being hesitant at first. I am all for calling things what they are. A restaurant called “Restaurant?” Why not? A podcast about native plants called “Native Plant Podcast?” Sure. It’s not the most creative name, but it works. What I was worried about, though, was that a podcast calling itself after native plants was going to be preachy, pushy…or just dull.

Yet I work with native plants every day(!), and I love them – so my initial judgement must say more about myself than anything else. Despite my hesitation – and my inclination to judge a podcast by its cover – I gave it a shot. I’m so glad that I did, because what I found was a highly informative show that is simultaneously delightful, fun, goofy, and entertaining. It’s a podcast that doesn’t take itself too seriously. The hosts and their guests share an important message about the benefits of native plant gardening, and they do so with passion and a sense of urgency while remaining lighthearted and approachable.

native plant podcast logo and sign

Native Plant Podcast is young. The first episode came out in January 2016. It is run by three individuals that met at the Cullowhee Native Plant Conference in North Carolina (a conference that is often mentioned on the podcast). Mike Berkeley and John Magee are the regular hosts; Jesse Turner mainly operates behind the scenes but makes appearances on a few episodes. They each have their own nursery and/or landscaping businesses that deal largely with native plants. Together they have decades of experience working with native plants. In an episode with Neil Diboll of Prairie Nursery, Mike makes the comment that they “were into native plants before it got cool.” Several of the guests that have been on the podcast so far can say the same thing.

One such guest is Miriam Goldberger, owner of Wildflower Farm and author of Taming Wildflowers, who appears on two episodes (part 1 and part 2). Other notable guests include Thomas Rainer, co-outhor of Planting in a Post-Wild World, and David Mizejewski, a naturalist for the National Wildlife Federation. So far all of the guests have been great, and since the the podcast has only been around for a few months, it is easy to catch up on past episodes.

As someone who enjoys sitting around talking about plants, this podcast is perfect since much of the “airtime” is taken up by such discussions. The episodes about winter interest and spring gardening are particularly great for this sort of thing. Two other standout episodes are the introductory episode, in which Mike and John discuss how they got started working with native plants, and the episode about defining native plants, in which Mike, John, and Jesse all take a crack at coming up with a definition. A topic that comes up often on the podcast is native plant cultivars (John understandably cringes each time he hears the portmanteau of “native” and “cultivar”), which seems to be a controversial topic in the native plant world.

Prairie dropseed (Sporobolus cryptandrus) - one of Mike and John's favorite grasses and a plant that comes up frequently on the podcast. (photo credit: wikimedia commons)

Prairie dropseed (Sporobolus cryptandrus) – one of Mike and John’s favorite grasses and a plant that comes up frequently on the podcast. (photo credit: wikimedia commons)

In each episode of the podcast there is an interview/discussion followed by three short segments: listener questions, stories about dogs or other pets (the hosts really love their dogs), and a toast (in which the hosts pop open their beers in front of the microphone for all to hear). The twitter bio for the Native Plant Podcast sums it up well: “A podcast started by a group of goofballs to highlight the beauty and functionality of native plants in the landscape.” These goofballs really know their stuff, and I highly recommend listening to their show.

Bonus quote from the episode with Neil Diboll:

Everybody says they love Mother Nature, but if you look at people’s yards, very few people actually invite her over. Most people have lawns that are mown to within an inch or two of their lives, and the typical American garden is like a big pile of mulch with a few perennials stuck in it or maybe a few shrubs stuck in it. These are really non-functional gardens from a standpoint of an ecological approach, so bringing your landscaping to life is creating ecological gardens that are not just for the owner of the property, but for all life that you can attract to the land for which you are the steward.

Book Review: Bringing Nature Home

Since Bringing Nature Home by Douglas Tallamy was first published in 2007, it has quickly become somewhat of a “classic” to proponents of native plant gardening. As such a proponent, I figured I ought to put in my two cents. Full disclosure: this is less of a review and more of an outright endorsement. I’m fawning, really, and I’m not ashamed to admit it.

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The subtitle pretty much sums it up: “How You Can Sustain Wildlife with Native Plants.” Ninety three pages into the book, Tallamy elaborates further: “By favoring native plants over aliens in the suburban landscape, gardeners can do much to sustain the biodiversity that has been one of this country’s richest assets.” And one of every country’s richest assets, as far as I’m concerned. “But isn’t that why we have nature preserves?” one might ask. “We can no longer rely on natural areas alone to provide food and shelter for biodiversity,” Tallamy asserts in the Q & A portion of his book. Humans have altered every landscape – urban, suburban, rural, and beyond – leaving species of all kinds threatened everywhere. This means that efforts to protect biodiversity must occur everywhere. This is where the You comes in. Each one of us can play a part, no matter how small. In closing, Tallamy claims, “We can each make a difference almost immediately by planting a native nearby.”

A plant is considered native to an area if it shares a historical evolutionary relationship with the other organisms in that area. This evolutionary relationship is important because the interactions among organisms that developed over thousands, even millions, of years are what define a natural community. Thus, as Tallamy argues, “a plant can only function as a true ‘native’ while it is interacting with the community that historically helped shape it.” A garden designed to benefit wildlife and preserve biodiversity is most effective when it includes a high percentage of native plants because other species native to the area are already adapted to using them.

Plants (and algae) are at the base of every food chain – the first trophic level – because they produce their own food using the sun’s energy. Organisms that are primarily herbivores are at the second trophic level, organisms that primarily consume herbivores are at the third trophic level, and so on. As plants have evolved they have developed numerous defenses to keep from being eaten. Herbivores that evolved along with those plants have evolved the ability to overcome those defenses. This is important because if herbivores can’t eat the plants then they can’t survive, and if they don’t survive then there will be little food for organisms at higher trophic levels.

The most important herbivores are insects simply because they are so abundant and diverse and, thus, are a major food source for species at higher trophic levels. The problem is that, as Tallamy learned, “most insect herbivores can only eat plants with which they share an evolutionary history.” Insects are specialized as to which plants they can eat because they have adapted ways to overcome the defenses that said plants have developed to keep things from eating them. Healthy, abundant, and diverse insect populations support biodiversity at higher trophic levels, but such insect populations won’t exist without a diverse community of native plants with which the insects share an evolutionary history.

That is essentially the thesis of Tallamy’s book. In a chapter entitled “Why Can’t Insects Eat Alien Plants?” Tallamy expounds on the specialized relationships between plants and insects that have developed over millennia. Plants introduced from other areas have not formed such relationships and are thus used to a much lesser degree than their native counterparts. Research concerning this topic was scarce at the time this book was published, but among other studies, Tallamy cites preliminary data from a study he carried out on his property. The study compared the insect herbivore biomass and diversity found on four common native plants vs. five common invasive plants. The native plants produced 4 times more herbivore biomass and supported 3.2 times as many herbivore species compared to the invasive plants. He also determined that the insects using the alien plants were generalists, and when he eliminated specialists from the study he still found that natives supported twice as much generalist biomass.

Apart from native plants and insects, Tallamy frames much of his argument around birds. Birds have been greatly impacted by humans. Their populations are shrinking at an alarming rate, and many species are threatened with extinction. Tallamy asserts, “We know most about the effects of habitat loss from studies of birds.” We have destroyed their homes and taken away their food and “filled their world with dangerous obstacles.” Efforts to improve habitat for birds will simultaneously improve habitat for other organisms. Most bird species rely on insects during reproduction in order to feed themselves and their young. Reducing insect populations by filling our landscapes largely with alien plant species threatens the survival of many bird species.

In the chapters “What Should I Plant?” and “What Does Bird Food Look Like?,” Tallamy first profiles 20 groups of native trees and shrubs that excel at supporting populations of native arthropods and then describes a whole host of arthropods and arthropod predators that birds love to eat. Tallamy’s fascinating descriptions of the insects, their life cycles, and their behaviors alone make this book worth reading. Other chapters that are well worth a look are “Who Cares about Biodiversity?” in which Tallamy explains why biodiversity is so essential for life on Earth, and “The Cost of Using Alien Ornamentals” in which Tallamy outlines a number of ways that our obsession with exotic plants has caused problems for us and for natural areas.

Pupa of ladybird beetle on white oak leaf (photo credit: wikimedia commons)

Pupa of a ladybird beetle on a white oak leaf. “The value of oaks for supporting both vertebrate and invertebrate wildlife cannot be overstated.” – Doug Tallamy (photo credit: wikimedia commons)

Convincing people to switch to using native plants isn’t always easy, especially if your argument involves providing habitat for larger and more diverse populations of insects. For those who are not fans of insects, Tallamy explains that “a mere 1%” of the 4 million insect species on Earth “interact with humans in negative ways.” The majority are not pests. It is also important to understand that even humans “need healthy insect populations to ensure our own survival.” Tallamy also offers some suggestions on how to design and manage an appealing garden using native plants. A more recent book Tallamy co-authored with fellow native plant gardening advocate Rick Darke called The Living Landscape expands on this theme, although neither book claims to be a how to guide.

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