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

Looking at plants is one thing; learning to truly see them is another. Carrie Roy, Acting Curator of Art, introduces us to one of the world’s great collections of plant portraits, the Hunt Institute For Botanical Documentation in Pittsburgh, Pennsylvania, and shares how the artist’s vision can delight and inform gardeners, changing the very way we see

Rebecca McMackin, a visionary horticulturist, has spent the last decade supervising the transformation of Brooklyn Bridge Park, 85 acres of abandoned shipping piers, into a complex of functioning ecosystems that serve as havens for wildlife and an accessible means for city dwellers to reconnect with nature. Now she’s moving on to new adventures. In our conversation she reflects on the accomplishments of Brooklyn Bridge Park’s remarkable horticultural staff, the acute need for such landscapes in a rapidly urbanizing world, and how gardening can influence not only our relationship with the natural world but also with each other.

Born in North America in the 1980’s, “Rewilding” has taken off in Europe, where it’s inspiring a return of broad tracts of marginal farmlands to functioning wild ecosystems. In this episode Canadian journalists Kat Tancock and Domini Clark discuss their new online magazine, “Rewilding,” which introduces readers to the basics of this fascinating worldwide movement, while helping them to apply its dynamics to their own back yards

With some 40 million acres of lawn in the continental United States, transforming that feature of our landscapes presents the greatest opportunity for an environmental up-grade in our gardens. Krissy Boys, the Natural Areas Horticulturist of the Cornell Botanical Gardens in Ithaca, New York, has shown how to do that. She’s replanted an area of conventional turf, replacing the European-descended lawn grasses with naturally compact native grass species and a complex of low-growing perennial flowers to support pollinators. Krissy has dramatically reduced the need for mowing, eliminated lawn watering and fertilization, and made her re-designed turf into a richly functioning part of the local ecosystem. Join our conversation to hear the details of how she accomplished this

Veteran investigative journalist Carey Gillam introduces her award-winning book, “Whitewash: The Story of a Weed Killer, Cancer, and the Corruption of Science,” sharing its account of the collaboration between chemical manufacturer Monsanto and governmental agencies to cover up the disastrous health hazards of the omnipresent weed killer, Roundup

Dan Mabe, founder of AGZA, the American Green Zone Alliance, has taken on one of the bitterest impasses of contemporary suburbia. So many residents hate the noise and fumes of gas-powered landscape equipment, and its unsustainable thirst for fossil fuels. Landscape maintenance contractors reply that they cannot provide the services their customers demand at a price they will pay without it. AGZA has developed analytical tools that can help owners reduce the carbon footprint of their landscape by a half or even more. It also works with landscape industry professionals to help them explore alternate tool systems, cleaner burning or battery powered, that can enable them to accomplish maintenance goals at less environmental cost and typically far more quietly. Listen to Dan describe how AGZA resolves the conflicting dynamics.

#NoMowMay is an international movement that has been gaining widespread popularity in the United States. Its goal is to persuade gardeners to stop mowing their grass during the month of May so that lawn weeds such as dandelions and white clover may flower and provide early spring pollen and nectar for insect pollinators. A laudable impulse, but Dr. Sheila Colla of York University and her colleagues biologist Heather Holm and native plants stalwart Lorraine Johnson have published an article in Rewilding Magazine detailing why this isn’t the best means of fostering native pollinators in North America

If each of us enriched our personal landscape with native plants, making it hospitable to pollinators, birds, and other wildlife, what an immense cumulative impact we would have! In Saving Nature One Yard At A Time, veteran naturalists and gardeners David Deardorff and Kathryn Wadsworth show us just how we can accomplish that, while also joining together to boost the ecological health of our communities as well. Framed as a series of stories profiling individual animals and plants, this book is as entertaining as it is informative, and is thoughtfully designed to apply no matter where in the continental United States you happen to garden

Colleen Murphy-Dunning, director of the Urban Resources Initiative, describes how Yale University’s School of the Environment partnered with the New Haven community to design and implement a very successful program to enhance the urban ecosystem in a way that directly benefits residents while also educating students.

Director of Horticulture at the Native Plant Trust in Framingham, Massachusetts, and former Curator of Native Flora at the Brooklyn Botanic Garden, Uli Lorimer has written a new book, The Northeast Native Plant Primer, 235 Plants for an Earth-Friendly Garden. An outstanding introduction to gardening with native plants, it is especially relevant for residents of the northeastern United States but has much to offer to gardeners in other regions of the country as well. In our conversation, we explore such matters as what is a native plant and why species-type native plants are better for the “earth-friendly” garden.

Dr. Toni DiTommaso of Cornell University explains how familiarity with the ecology of weeds can help a gardener control their impact on the garden without resorting to toxic chemicals, and shares the web address of a free book-length guide to the subject.

With roots in traditional Korean agriculture, Bokashi composting has much to offer the contemporary gardener. Conway School graduate Boris Kerzner describes the process, explaining how you can pursue this process for recycling kitchen wastes – including meat scraps and dairy – to enrich your garden’s soil in just weeks.

Water is a resource plants cannot do without, and maintaining the right level of moisture in your soil – not too little and not too much – is critical to gardening success. That’s why pioneering horticulturist Robert Kourik holds irrigation to be one of the gardener’s most powerful tools. Join him for details about the techniques he has found most precise and efficient, methods of irrigation that can reduce your water use by a half or more while also boosting your harvest of fruits and flowers.

For 40 years, Larry Weaner, founder of Larry Weaner Landscape Associates, has been exploring the intersection of ecology with landscape and garden design, creating a style of planning, planting, and management that is founded in the natural dynamics of the site. One of the most powerful of these dynamics is succession, the inherent tendency of landscapes and their flora to evolve and change. By learning how to work with succession, how to channel and direct it down desirable paths, Larry has succeeded in creating landscapes that are not only biologically richer but also far easier to manage than conventional gardens designed around a static, change-resistant plan. Join the conversation and listen to Larry Weaner discuss how to incorporate succession into a habitat that addresses the needs and desires of both people and nature.

Share my discovery of a Nebraska treasure: the Prairie Plains Resource Institute. For more than 40 years this organization has been perfecting low-tech methods of wild grassland restoration while reconnecting people with the richness of their prairie heritage. Join us for a visit with executive director Amy Jones

To trace the impact of climate change on the plants and animals of Massachusetts, Dr. Richard Primack of Boston University turned to an unconventional source: the journals of 19th century philosopher Henry David Thoreau. In these documents, Dr. Primack discovered a wealth of relevant, closely observed data. Learn about this and Dr. Primack’s other intriguing discoveries in this week’s Growing Greener

Gardening can be a prime source of aches and pains, from a bad back to tendonitis – now “GardenFit,” the new public television series, combines inspiring visits to extraordinary gardens with professional advice on how to keep your gardening healthy. Join hosts Madeline Hooper and Jeff Hughes in their project to make your gardening more rewarding both horticulturally and physically

Have you wanted to save seeds from your vegetable and flower crops and free yourself from reliance on commercial seed retailers? Do you want to develop your own bank of locally adapted seeds? Jeanine Scheffert of the Community Seed Network shares how her organization can help you succeed in both these endeavors and put you in touch with other gardeners with similar interests.