
54.7K
Downloads
263
Episodes
Grow your best crop ever! Cultural and technical information for greenhouse professionals.
Episodes

4 days ago
4 days ago
25 min
For this episode, host Bill Calkins is joined by Jeremy Webber, an ornamentals crop team member at Koppert. Jeremy has experience in propagation and finished plant production, as well as more than a decade of leading a team that works with growers across North America to develop holistic IPM approaches customized for each greenhouse and growing situation.
At his core, Jeremy is a plant guy through and through and wrote an excellent article for the 2026 GrowerTalks Biosolutions Guide. For the guide, Bill challenged him to put a unique spin on how bio-IPM strategies lead to plant health, which in turn means fewer crop losses and a reduced need for rescue missions to save plants from pest and disease. Jeremy titled his article “The End of Rotation Anxiety (Stop Playing the MOA Game with EPF)” and explored an angle he’s truly passionate about—that although rotating crop protection products is definitely a key part of IPM and resistance management, it’s sort of an old school way of thinking.
If this sounds bold and raises questions in your mind, we’re with you. Which is why Bill sat down with Jeremy at the July 2026 Cultivate event in Columbus, Ohio … to dig deeper into the article to better understand what Jeremy is advocating for.
Resources

Jul 23, 2026
Jul 23, 2026
8 min
This week, let’s talk about two of the most common and costly disease issues we encounter in garden mum production: Pythium and Fusarium. Both can cause stunting, chlorosis, wilting and lead to major crop losses, but they are not the same organism. Knowing which one you’re dealing with makes a big difference—particularly when selecting proper tools to prevent disease and respond to symptoms when they appear.
If there’s one takeaway from today’s tech tip, it’s this: rootzone disease outbreaks in mums don’t begin when symptoms appear—they begin days or weeks prior when plants become stressed or protection lapses. Whether you’re dealing with Pythium or Fusarium, the growers who consistently prevail against these pathogens are the ones who focus on sanitation, prevention, root health and stress management.
This episode is sponsored by Prospiant—leaders in greenhouse design, manufacture and build. Learn more and connect with the expert team at prospiant.com.
Subscribe to the weekly Tech On Demand e-newsletter: https://www.growertalks.com/Newsletters/Signup/?newsletter=techondemand

Jul 21, 2026
Jul 21, 2026
52 min
Host Bill Calkins caught up with Mike Gooder to discuss the evolution of vegetative crops from breeding and supply to production and demand. Then the conversation turned to the amazing story our industry has to tell and why this is critical for our future.
When Bill planned the episode, he had a goal in mind—to learn about how the vegetative side of our industry evolved through the eyes of someone who was in the game early and in a big way. His guest for this episode is Mike Gooder, the owner of Plantpeddler in Cresco, Iowa and the business was a rooting station before such a thing was cool. Bill was hoping to learn how and why the Gooders took such a big risk early on—building greenhouses and infrastructure to support production of vegetative young plants before the market was as proven as it is today.
They definitely got into that story but then the conversation veered off the young plant path and down a different road. About half the episode was Mike and Bill talking about how amazing floriculture is and how we need to develop messaging and tell this story far and wide to attract fresh, new talent to the industry. They discussed the importance of connection, networking, partnerships, relationships and how Mike’s industry involvement and leadership over more than 40 years opened doors for his business that he never imagined when he and Rachel bought the greenhouse back in 1980. You have to listen all the way to the end of this episode because there’s so much good information shared. It’s really an inspiring conversation.
As mentioned in the episode, mark your calendar for the Plantpeddler new variety open house in August or make plans to attend in the future. Here’s a link for more information: https://www.plantpeddler.com/trials/gardens-variety-day
Learn more about Plantpeddler: https://www.plantpeddler.com/
Read “Solid Strategies for Expanding” by Jennifer Zurko—GrowerTalks March 2026— https://www.growertalks.com/Article/?srch=1&articleID=27906

Jul 13, 2026
Jul 13, 2026
41 min
Throughout 2026, host Bill Calkins has been catching up with different people in the professional horticulture space and find out a little bit about their careers, passions, journeys in the world of plants and much more. He sent each potential guest a list of 12 questions and they picked four to answer and discuss.
This episode, Bill is joined by his friend Kate Terrell, owner/president/GM of Wallace’s Garden Center in Bettendorf, Iowa. Kate is pretty much an industry icon at this point. She heads up her family’s business growing and selling plants and a whole lot more than that. She’s active in tons of industry leadership roles, writes articles for industry magazines, serves on committees and boards and is also a leader in her local community. It’s amazing she finds enough hours in her days to do everything. Plus, she’s a mom, Cubs and Cyclones fan and top-notch businesswoman. She has a lot to share this episode so be sure to stick around all the way to the end!
Here are the four questions Kate selected:
Q: What’s something about professional horticulture that annoys you and how would you change it?
Q: What are your top 3 favorite annuals? And perennials?
Q: What advice would you give to a young person considering pursuit of a career in horticulture?
Q: What advice would you give to an industry veteran currently dealing with “burnout”?
This episode is sponsored by Mycorrhizal Applications—master distributor of biological and botanical plant support solutions and the world’s leading supplier of mycorrhizal soil inoculants. Learn more and connect with the expert team at mycorrhizae.com.

Jul 7, 2026
Jul 7, 2026
33 min
Throughout 2026, host Bill Calkins has been catching up with different people in the professional horticulture space and find out a little bit about their careers, passions, journeys in the world of plants and much more. He sent each potential guest a list of 12 questions and they picked four to answer and discuss.
This episode, Bill is joined by his friend Jeremy Webber, the Crop Team Manager at Koppert and an IPM expert with plenty of greenhouse and nursery experience and a true passion for plants and how to produce them efficiently and effectively. Jeremy is a great storyteller and that skill shines over the course of this episode. It’s funny, informational and a fantastic look into the mind of someone who thinks deeply about our industry every day.
Here are the four questions Jeremy chose to answer:
Q: What was your first exposure to “horticulture” and how did you feel, react, respond?
Q: If you had a free hour, what would we find you doing?
Q: What are your top 3 favorite annuals? And perennials?
Q: What do you love most about your job?
This episode is sponsored by Prospiant—leaders in greenhouse design, manufacture and build. Learn more and connect with the expert team at prospiant.com.

Jul 1, 2026
Jul 1, 2026
30 min
In this episode, the goal is to explore and unpack the upcoming AmericanHort Plug and Cutting Conference, a must-attend event focused on young plant production. Host Bill Calkins is joined by AmericanHort’s Education Program Manager Rachel Rawls to discuss some of this year’s conference components, tour experiences, educational insights and and networking opportunities designed to help level up your young plant production.
Plug & Cutting Conference
Philadelphia, PA
September 14-16, 2026
LEARN MORE & REGISTER FOR THE CONFERENCE HERE: https://americanhort.org/upcoming-events/plug-and-cutting-conference/
Here’s what you can expect to learn about in the next 30 minutes:
- The unique focus of the Plug and Cutting Conference on young plant propagation and why it stands out from broader industry events
- Practical education tracks covering crop timing, plant health, automation, sustainability and business management
- How peer-to-peer discussions and expert panels foster real-world learning and collaboration
- The integration of skill stations during production tours for hands-on experience in topics like dip-and-cutting and scouting
- The importance of addressing industry challenges like labor, input costs and crop quality early in the plant growth cycle
- Innovations in automation tailored for young plant production and how to incorporate practical, cost-effective tools
- Highlights of the extensive production tour lineup: Lucas Greenhouses, North Creek Nurseries, Star Roses & Plants, and Longwood Gardens
- The role of Spanish-language sessions in broadening industry access and workforce development
- Tips on translating conference learning into actionable improvements at your greenhouse, including leveraging on-demand session recordings
- Strategies for effective networking, building peer relationships and maintaining connections post-conference

Jun 24, 2026
Jun 24, 2026
9 min
THE GEAR GUIDE
FROM THE JUNE 2026 ISSUE OF GROWERTALKS MAGAZINE
WRITTEN BY CHRISTOPHER J. CURREY
NARRATED BY BILL CALKINS
EXCERPT: Investing in the relatively modest selection of tools and equipment won’t just help you identify and conquer problems in the greenhouse—it should help you avoid them. A systematic regular approach to monitoring plant growth, the growing environment, pests and diseases, and the rootzone will produce high-quality crops … but, unfortunately, won’t help you with the zombies.
Read the Digital Edition: https://www.ballpublishing.com/magazine/gt_26_06/index.aspx
This episode is sponsored by Prospiant—leaders in greenhouse design, manufacture and build. Learn more and connect with the expert team at prospiant.com.

Jun 22, 2026
Jun 22, 2026
35 min
This episode of the Tech On Demand podcast, brought to you by GrowerTalks is a special presentation from the 2026 Darwin Perennials Day event in The Gardens at Ball in West Chicago, Illinois. Darwin Perennials Day is an annual event held each summer to showcase perennial plants, breeding innovations, a huge range of suppliers and of course the growers who produce and sell perennial crops.
For many years, the event has included educational sessions, panel discussions and talks by perennial experts. This year, one of the panels was moderated by GrowerTalks editor Jen Zurko with three expert panelists focused on echinacea production. Echinacea Best Practices for Spring, Summer and Fall featured Ball Seed Culture Research Manager Nathan Jahnke, Darwin Perennials Product Representative Chris Fifo and Hans Stokes, the Seedling Business Manager at Swift Greenhouses in Iowa.
You’ll find this discussion interesting and packed with information to help you and your team level up your echinacea production.
Darwin Perennials Day: https://www.darwinperennialsday.com/
Darwin Perennials on YouTube: https://www.youtube.com/@darwinperennials/videos

Jun 18, 2026
Jun 18, 2026
6 min
As temperatures rise and the heat of summer starts to set in, it’s important to periodically take a moment to pause… cool down… and think ahead.
Right now it’s time to do this for poinsettias.
I’ve already started to get proactive questions on poinsettias—not just about propagation, but about finished production. And while there are great resources available that cover poinsettias from start to finish, today we’re going to focus on a few key considerations that can make a big difference early in the process.
Subscribe to the weekly Tech On Demand e-newsletter: https://www.growertalks.com/Newsletters/Signup/?newsletter=techondemand
This episode is sponsored by Mycorrhizal Applications—master distributor of biological and botanical plant support solutions and the world’s leading supplier of mycorrhizal soil inoculants. Learn more and connect with the expert team at mycorrhizae.com.

Jun 15, 2026
Jun 15, 2026
32 min
In this episode, we celebrate 10 years of Suntory's popular Catharanthus series, Soiree Kawaii with the company’s North American sales and product manager Lorentina Fielding. Lorentina is the perfect person to discuss this crop because she can cover crop production based on her work with growers across the continent (and her own production experience), as well as explaining how the product fits into retail programs and home and professional gardens and landscapes. And Soiree Kawaii has a place in all of these areas as you’ll hear throughout the episode.
Lorentina also shares behind-the-scenes perspectives on product development, marketing strategies and the innovative promotional campaigns developed for Soiree Kawaii as it celebrates 10 years—including social media influencer campaigns, an ongoing cause-marketing partnership with Girls Inc. and a teaser of what you can expect from Suntory at this year’s Cultivate event in July.
Resources:
2027 Suntory Catalog: https://suntoryflowers.com/wp-content/uploads/2026/02/2027-Suntory-Catalog-web.pdf
Soiree Kawaii Series: https://suntoryflowers.com/series/soiree-kawaii-catharanthus/
Happy 10th Birthday Soiree Kawaii: https://mailchi.mp/suntoryflowers/variety-view-soiree-kawaii-turns-10?e=b4b9e987f6
Suntory Flowers E-Blast (you REALLY should sign up to receive this …): https://suntoryflowers.com/marketing/newsletters/
Girls, Inc.: https://www.girlsinc.org/
