Growing Greener

"Grow Your Own" is a cornerstone of sustainability, but our vegetable gardens are being challenged by increasingly erratic weather as the climate changes. John Traunfeld, Program Director at the University of Maryland's Home & Garden Information Center shares his experiences in making food gardens more climate resilient, and how this can even draw our communities closer together.

Lead contamination is common in soils of many residential neighborhoods in urban, suburban, and even rural settings. Soil scientist Clay Robinson – "Dr. Dirt" – details where this problem is most likely, how to test your soil, and how appropriate gardening can provide protection.

Artist Robert Adzema discusses his history of creating ingenious and innovative sundials, and what sundials can teach the gardener about plants' primary fuel.

Dan Jaffe Wilder's response to the polluting sterility of the traditional lawn? Plant strawberries. And that's only one of many intriguing – and tested - proposals made by this talented native plants pioneer.

Robert Kourik, a pioneer of sustainable gardening, draws on his 45 years of experience with Permaculture to explore the strengths and weaknesses of this controversial gardening movement

Will "volcano mulch" the landscaper piled around the bases of your trees kill them? And is a mulch made of ground-up shipping pallets really beneficial for your plants? You may be surprised by the science-based insights about common organic mulches that Dr. Linda Chalker-Scott of Washington State University shares in the most recent "Growing Greener."

Ecological gardening leader Larry Weaner details how you can get all the benefits of conventional mulch, plus boosting biodiversity and wildlife, with a well-designed and beautiful groundcover of native plants

Maya K. van Rossum discusses Green Amendments for the Generations, the movement she founded to bring an amendment to every state constitution guaranteeing residents' basic human right to clean air and water, and a healthy environment

John Walker, a horticulturist who trained at the Royal Botanic Gardens Kew and a multi award winner environmental writer, shares advice on Veganic Gardening, an approach that combines organic practices with plant-based nurturing of the soil with resources found or grown on-site for maximum sustainability.

Buying topsoil is a quick and popular fix for many garden problems – but buyer beware says Dawn Pettinelli, Director of the University of Connecticut's Soil & Nutrient Analysis Lab. There are no industry standards, not even a definition, of what makes a good topsoil. Dawn shares tips on making sure the topsoil you buy is non-toxic and of a quality that will benefit your plants.

"Gardeners are the worst threat to native plants." Hostility toward horticulturists is common within the ecological restoration community. But, John Gedraitis of Van Berkum Nursery says, it's an impediment to growers such as him who want to expand the availability of local ecotype plants, genetically adapted natives grown from locally collected wild seed.

Elizabeth Licata, a passionate promoter of Garden Walk Buffalo, the nation's largest free open garden tour, and a longtime contributor to the popular blog "Garden Rant" takes on gardener anthropomorphism, our appealing but destructive habit of ascribing human emotions and characteristics to plants.

Landscape architects Wolfgang Oehme and James van Sweden electrified the gardening world in 1975 when they introduced a new horticultural richness and a concern for sustainability with their "New American Garden Style." Eric Groft, current CEO of Oehme, van Sweden discusses the firm's new book, "Beyond Bold," describing how the successor generation has remained true to that legacy while pursuing new avenues of environmental sensitivity.

Dr. Douglas Tallamy, the University of Delaware entomologist who has been awakening homeowners to the need to plant natives and join our plots together in a giant "homegrown national park," has found a new audience. He has just released a young readers' edition of his best-selling book, "Nature's Best Hope." Learn how you can enlist your children in the campaign to save our ecosystems.

Founded in 2013 by internationally acclaimed garden designer Edwina von Gal, the Perfect Earth Project seeks to introduce landscape professionals to toxin-free, sustainable approaches to their craft, while reaching out to their customers to create a market for these skills. Listen to the Project's new Executive Director Matt Jeffery discuss the many new programs the organization is pursuing.

Jeff Lorenz, founder of the acclaimed Refugia Design Build, explains why the pandemic was a boom time for a landscaper committed to native plants, and how his firm's "Ecological Greenway Network" is transforming neighborhoods

Nebraskan Benjamin Vogt, a leader in nature-based gardening, has just published Prairie Up, a book that is sure to become a go-to tool for those designing and installing landscapes rooted in our native grassland flora. With its many insights how the dynamics of native plants will shape a native landscape, Prairie Up offers invaluable lessons to nature-based gardeners everywhere

My quest for tomatoes that will bear in my cool, cloudy climate led me to Dr. James Myers of Oregon State University. He shared with me the cultivars he had bred for that purpose, then described a program to produce vegetables better adapted to organic cultivation, and his collaboration with chefs

Horticultural Educator Carol Reese explains why feeding your garden in springtime with a "complete" fertilizer can be a mistake, and describes a "lazy" style of gardening that can help heal the environment while drastically reducing your work.

Plant explorers, once the rock stars of the horticultural world, have suffered a loss of status as gardeners turn to native plants. Listen to plant explorer extraordinaire Panayoti Kelaidis of the Denver Botanic Gardens discuss why his quest is still important to making our gardens more sustainable, as well as beautiful.

Gratify your Indiana Jones fantasies by joining the Plant Conservation Volunteers. Your work will have you hiking into overlooked corners of the wild to monitor surviving populations of rare and endangered native plants, and work with landowners to combat threats.

Are your beloved native plants actually "noxious weeds"? Too often town or homeowner association officers say yes and invoke anti-weed ordinances to force gardeners back to old-fashioned lawns and foundation plantings. Listen to attorney and native plants advocate Rosanne Plante tell you how you can fight back, and win.

Starting plants from seed is economical and opens up a world of species and cultivars you'll never find in the garden center. Seed starting is also easy and fun if you use the winter-sowing technique that Dolly Foster teaches.

Since 1827, the Pennsylvania Horticultural Society has been leading the way in American gardening. Listen this week as its Vice President of Horticulture, Andrew Bunting, describes the trends to look for in 2023, and why sustainability concerns are at the top of the list.

Michael Starkey understands that not everyone shares his enthusiasm for snakes, but as founder and Executive Director of Save the Snakes he believes that humans and snakes, even venomous snakes, can coexist. As a wildlife biologist, Michael shares techniques for making your landscape less – or more – attractive to snakes and how education can protect against snake bites and enhance your enjoyment of these amazing creatures

In the early years of the 20th century an introduced fungal blight killed an estimated 4 billion American chestnut trees, effectively eliminating what had been a foundational species of eastern North American woodlands. Scientist Andrew Newhouse of the State University of New York explains how his university is preparing to release a race of American chestnuts genetically engineered to withstand the blight, so that this essential tree may flourish in the forest once again.

Popular gardener and garden blogger Helen Battersby of Toronto, Canada describes the impact of Ontario's ban of pesticide use for ornamental purposes in this conversation from 2020

Award-winning garden designer and writer Tony Spencer introduces the New Perennial Movement that has brought a revolutionary naturalistic ethic to gardens worldwide

Combining native plants gardening with land preservation and a museum of extraordinary regionally focused art has made the Brandywine Conservancy a unique celebration of the local landscape. Join Horticultural Coordinator Mark Gormel as he explains how this all begins with locally collected seeds, and how home gardeners can duplicate this in their own back yards.

One of the most important events of my gardening year is the extraordinary collection of gardeners, designers, and ecologists who assemble to exchange ideas every January at the New Directions in the American Landscape's two-day annual symposium. Join executive director of NDAL, Sara Weaner, to learn about this year's line-up of extraordinary speakers and topics. It's a don't miss opportunity

One of the great success stories of American wildlife, black bears are returning throughout their historic range and even moving into the suburbs. Confrontations with human inhabitants have fed calls for hunting seasons to curb their numbers. Wildlife ecologist Laura Simon explains why this is unlikely to resolve the problem, and shares proven strategies for reducing black bear problems

Join Collin Thompson, the Farm Manager at Johnny's Selected Seeds, as he discusses how planting "cover crops" in your garden can benefit not only the health of the soil and the plants you grow on it but also enhance pollinator populations and curb weeds, all while reducing your carbon footprint and fighting the spread of plant pests and diseases

Hedgerows, informal borders of intermingled shrubs and trees, are a familiar feature of the British countryside, serving not only to enclose farmers' fields but also providing a refuge for wildlife and a source of foods for humans, birds, and pollinators alike. Dr. Annabel Renwick, the curator of native plants at the Sarah P. Duke Gardens in Durham, North Carolina, describes how she is using southeastern shrubs and trees to translate this environmentally beneficial, beautiful, and useful feature to American Gardens.

Dr. Leigh Whittinghill of the Connecticut Agricultural Experiment Station is extending that storied institution's research into a new landscape: the rooftops of Connecticut's city neighborhoods. Enhancing city-dwellers' diet can also benefit the local environment

Mike Lizotte, the "Seedman" of American Meadows and High Country Gardens discusses his companies' program to provide locally adapted wildflower and native grass seed mixes throughout the United States, and the growing enthusiasm among gardeners nationwide for environmentally beneficial plantings

In his fascinating new book, "The Mind of a Bee," Dr. Lars Chittka explores not only bees' ability to learn and process information, but also the evidence that individual bees possess distinctive personal psychologies. His research transformed my understanding of pollinators and enriched my garden experience.

One of my favorite gardening tools is the Cornell Lab of Ornithology, the #1 resource for gardeners who want to know more about the birds in their landscapes. Join Dr. Emma Greig to explore the apps and online courses the Lab offers to help you identify and foster feathered visitors, and citizen science programs you can support to promote bird conservation.

Senior and physically challenged gardeners have a special interest in sustainable landscapes, according to Toni Gattone, author of The Lifelong Gardener: Garden With Ease and Joy At Any Age. Join her for guidance on everything from saving your back by reducing resource inputs to ergonomically adapting favorite tools.

Native garden designer and pollinator ecologist Alicia Houk details how incorporating reseeding native annuals makes your garden self-healing, weed-resistant, more colorful, and more wildlife friendly

Cathy Ludden epitomizes the role individual gardeners can play in transforming their local landscapes to meet our current environmental challenges. An avid student of native plants and wildlife, she has worked with great success at a personal, neighborhood, and county level to make her community biologically richer, ecologically healthier –and more beautiful.

Inheritor of a century-old family tradition of supplying the best spring-flowering bulbs to American gardeners, Brent Heath details the important role that they can play in today's sustainable gardens. Flourishing without the use of chemicals, these plants furnish reliable early spring color and food for early season pollinators; follow Brent's growing tips and your bulbs will return year after year as the toughest of perennials.

Fostering wildlife and native plants – making our landscapes contributors to the local ecosystem – has become a goal of so many gardeners. In her new book, "Wild By Design: The Rise of Ecological Restoration," Laura J. Martin traces how this became so. Introducing a remarkable band of ecologically minded pioneers, many of them women, Martin describes how this consciousness spread through the land preservation and gardening communities, how the understanding of restoration has changed over time, and what the future may hold with climate change.

American gardeners typically turn to England when looking for inspiration abroad, but they'll find a far more imaginative approach to integrating nature with human needs in contemporary Dutch gardening. Carrie Preston, an American designer who has made a career there, takes us for a tour.

Gardeners are busy now planting Dutch bulbs for a spring show, but there is an environmentally more beneficial alternative: native spring ephemerals. Neil Diboll, founder and president of Prairie Nursery, shares how to use these early blooming natives to create truly perennial early spring color while also benefiting pollinators and other wildlife.

Too often environmentally conscious gardeners look for the "silver bullet" for our sustainability and resource issues, rather than contenting ourselves with what Kathy Connolly describes as "two percent solutions." Kathy, an in-demand natural garden designer and educator, is referring to small changes that cumulatively can have a big impact. Listen to her describe her use of rain barrels as a convenient, inexpensive way to conserve drinking water, reduce energy usage, and make gardening more fun.

Late summer through early fall, according to Shay Lunseth, is the ideal time to put your lawn on a more environmentally friendly path. Shay's got advice about boosting the health of your grass without chemicals, reducing or ending inputs of fertilizer and water, and even making your lawn pollinator friendly

Biochar has been touted as a valuable soil amendment that fosters better plant growth and stretches fertilizer budgets. Will Hessert and Javaughn Henry have also found in it a means to sequester carbon and confront global climate change. Listen as Will describes how they are putting in place a project to convert municipal landscape waste into biochar on a grand scale

Starting native plants from locally sourced seed is the most economical and ecologically advantageous way to rewild domestic landscapes. In the past, though, this has been perceived as tricky and demanding, a process only for experts. Anna Fialkoff, Ecological Programs Manager of the Wild Seed Project in North Yarmouth, Maine, describes how her organization makes starting native plants from seed affordable and easy, even for novices

Admirers of exotic garden plants have taken to claiming that their foreign-born treasures are just as good nutritionally for our North American pollinators. Proponents of native plants insist that their flora supplies a better diet. We ask Dr. Harland Patch of Pennsylvania State University for the facts

Managing water is the crucial task of the summertime garden, especially as climate change boosts the heat and the frequency of droughts. Join Nancy DuBrule-Clemente, founder of the pioneering woman-owned landscape company and garden center, Natureworks, as she brings her organic gardening sensibility to bear on ways to reduce watering while weathering our warming summers.