The Plant a Trillion Trees Podcast

Rick Hartlieb and his wife and business partner, Jen, are the proud first-generation farmers behind Castanea Farms in Berks County, Pennsylvania. Their journey is rooted in both passion and persisten…

Natalie Carmolli manages Public Relations for Spring Meadow Nursery and Proven Winners® ColorChoice® shrubs. She grew up in the floral industry and holds a bachelor’s degree in theatrical arts, along…

Mary Tipping has held the position of Curator and Plant Recorder at the Scott Arboretum & Gardens at Swarthmore College in Swarthmore, Pennsylvania, since 2015, after working as the Horticulturist at…

Ethan Kauffman is the first director of Stoneleigh: anatural garden, where he has led the transition from a private estate to a public garden over the last 8 years.

He developed his love of the natur…

Trinity Pierce is the Chicago Region Trees Initiative senior stewardship manager at The Morton Arboretum. She collaborates with community organizations and members toincrease awareness and foster act…

Katherine Mills, General Manager for Munstead Wood, is anexperienced heritage professional with 14 years in the National Trust. Having run some of the charity’s most significant and popular propertie…

Jehane Samaha is the National Urban Nursery Specialist with the US Forest Service. She develops trainings and networking for both urban foresters and nursery growers to improve tree stock quality, en…

Della Fetzer is a biologist and entrepreneur. Her company, Rebel Cultures, partners with foresters, farmers, conservationists, greenhouses, and universities to develop low-cost and biodiversity-consc…

Jamie Biddle is the founding partner and CEO of VerdisInvestment Management, a single-family office. He sets the strategic direction of the firm, and overseas investment activities, operations, and f…

Linda Langelo is a Colorado State University Extension Horticulture Specialist and host of the Relentless Gardener Podcast. The five counties under her care are in Northeast Colorado, where she assis…

Jay Worth started working in the Green Industry in college to earn money between semesters. He started mowing lawns for a landscaping company and then moved to a full-service landscaper. While attend…

Kevin Zuidervliet is owner and grower at Octoraro Native Plant Nursery, in Kirkwood, Pennsylvania. His diverse professional experience and passion for horticulture began while traveling and working o…

Bestselling author Randi Minetor writes for the Birdfinding and Best Easy Bird Guides series for Falcon Guides/Globe Pequot Press and is the author of Backyard Birding and Butterfly Gardening for Lyo…

Angelique Robb graduated from Louisiana State University in Petroleum Engineering, working in the oil industry for many years in the USA and the UK.  

In 2008, she qualified as a landscape designer a…

Celine Colbert is Pennsylvania’s Tree Canopy Coordinator, dedicated to enhancing urban forestry and promoting sustainable tree management across the state. As a Board Certified Master Arborist with a…

Jessica (J.J.) Käthe is the resiliency planting coordinator within the Climate Forestry & Carbon Unit at NYSDEC (New York State Department of Environmental Conservation).

J.J. is seeking input from …

Tim Johnson is the Chief Executive Officer at the Native Plant Trust in Framingham, Massachusetts. He leads the organization’s 45-acre Garden in the Woods in Framingham, Massachusetts; the Nasami Far…

Dr. Anna Paltseva is a distinguished urban soil scientist and educator, currently serving as a professor in the Department of Agronomy at Purdue University. She earned her Ph.D. in Earth and Environm…

Carlos Alvarez has been a part of the PowerCorpsPHL (Power Corps Philadelphia) team since March 2015 when he started as a crew leader supporting a group of young people completing various environment…

Dan Lambe has committed nearly two decades of work to help solve some of the biggest issues facing people and the planet through trees. After being named CEO in 2022 after 19 years in leadership role…