Growing Greener

Traditional gardening emends the soil to suit the needs of the selected plants; pioneering nurseryman and ecologist Neil Diboll takes the character of the soil on site as the foundation of garden design and key to the selection of an adapted, ecologically functional, and self-sufficient plant palette

Internationally acclaimed landscape designer Edwina von Gal's Perfect Earth Project uses imaginative strategies to connect landowners big and small with nature-based, chemical-free   and biodiversity friendly management practices

Garden activist and educator Cathy Ludden describes her encounters with hydrangeas and how transforming the flower heads to suit human aesthetics has proved both harmful and beneficial to pollinators

Richard Hayden, Senior Director of Horticulture at New York's magical garden, the High Line, describes how it integrates   North American native plants with carefully chosen exotic species to create a whole that delights human visitors while also supporting wildlife and providing a powerful reconnection with nature

Many homeowners who admire the beauty and environmental benefits of native plants don't care for the wilderness look of the typical naturalized native plant garden.   Garden designer Britney O'Donnell shares tricks for designing and maintaining a more domesticated native plant landscape, one that fits better a neater suburban context

Skeptics say that invasive species are not a serious threat to biodiversity, that "Nature will heal itself" despite the looming, man-made mass extinction. Today, paleobotanist Dana Royer describes the five mass extinctions of the past, and why recovery from such episodes typically took millions of years

Karen Bussolini of historic nursery White Flower Farm makes the case for how a mix of native and non-native flowers can feed pollinators better throughout the growing season

Environmentalists say the traditional lawn must go, but homeowners commonly love their turf.   Organic lawn specialist Shay Lunseth outlines how we can "meet in the middle," and explains why fall is the critical season for organic lawns

Amanda Douridas of the Ohio State University Extension Service describes cover cropping, an ancient practice that can move your vegetable garden toward healthier, richer soil with less dependence on synthetic fertilizers and herbicides.

In a conversation recorded in February, 2020, Benjamin Vogt discusses his pioneering book, A New Garden Ethic, and the need for gardeners to become activists in this era of existential challenges to the plants and animals with which we share this planet

Dr. Rebecca Barak describes the collaboration between the Chicago Botanic Garden, Chicago Park District, Northwestern University, and the University of Michigan–Flint to develop native, biodiverse lawn alternatives that can withstand and moderate the effects of climate change

Alex Critchley and Sarah Johnson of The Wildlife Trust for Lancashire, Manchester & North Merseyside describe the growing movement in Britain to ban the sale of peat and peat-based gardening projects, and their organization's efforts to preserve and restore peatlands, a key piece in the battle against global climate change

Established in 1875, American Forests is a non-profit that was an enormously influential pioneer in addressing the over-exploitation and destruction of our nation's forestlands.   Listen as Benita Hussain, chief program officer for tree equity, describes how the organization has pivoted to assisting communities across the country bolster urban forests and fight climate change in economically chall...

Dr. Anurag Agrawal of Cornell University describes the many ways that plants defend themselves against locally indigenous insects, and how the insects defuse and even become dependent on the plants' defense mechanisms

Dr. Claire Rutledge of the Connecticut Agricultural Experiment Station describes the ingenious use of native and non-native insects to control the damage done by this introduced, tree-killing pest

Bats play many positive, essential roles in the ecosystem, says Lee Mackenzie of Austin Bat Refuge – learn how to make your garden hospitable to these good and harmless neighbors

Sam Hoadley, the manager of the trial garden at the Mt. Cuba Center in Hockessin, Delaware explores the native sedges of Genus Carex , a diverse, largely untapped source of groundcovers, foliage plants, and turfgrass substitutes that thrive with little maintenance.

Distinguished horticultural educator Carol Reese shares a lively exploration of transexual plants and   other reproductive mysteries displayed in your garden (originally broadcast in January 2022).

In this revelatory book Dr. Lars Chittka of Queen Mary University of London explores the psychology of bees, their extraordinary learning abilities and their individual personalities.

Sara Weaner Cooper, Executive Director of New Directions in The American Landscape, describes her organization's dynamic educational programing and her success in transitioning a front lawn into native meadow without the use of herbicides, smothering plastics, or turf removal

Although beloved by gardeners, earthworms are not native to the northern half of North America and can cause extreme changes in soil ecology there, with disastrous effects on native plants and animals.   A recent study Dr. Jérome Mattieu of the Sorbonne and colleagues reveals routes by which 70 species of alien earthworms are spreading throughout the United States

Ecological landscaping trail blazer Larry Weaner explains the importance of the long-term conversations you hold with your plants, letting them inform you about the role they can play in the garden ecosystem

Traditional gardeners shun plants that spread aggressively, but Ben Vogt, renowned natural garden designer, describes the positive roles they can play in an ecologically-based landscape

Amanda Freund of the Freund Dairy Farm describes how her family's ingenuity has transformed manure from an environmental liability into a source of renewable energy, a means of recycling waste paper and cardboard, and "Cowpots," a horticulturally superior replacement for environmentally destructive peat pots.

Dr. Amara Dunn-Silver of Cornell University discusses the advantages and limitations of biopesticides, and how, if properly used, they can often provide a more environmentally friendly alternative to conventional chemical treatments