From a look at aggressive vs. invasive plants to the buildup to this year’s Top 100, there was a lot of information to cover in Greenhouse Grower® Magazine ‘s May 2026 issue . Check out the slideshow below for a closer look at the top stories (links to each story are included in the photo gallery and the rest of the article below). You can also find a digital version of the issue here .
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During the drafting of the 2026 Top 100 Growers list , the concept of "integrated plant health management" was brought up frequently. The idea is centered around thinking more broadly about how to prevent problems from developing in the first place .
Photo: Adobe Stock
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Experts from BioWorks and Kansas State University explain why more floriculture growers are turning to biologicals , and what barriers still remain.
Photo: Raymond Cloyd
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Top 100 growers have shared where their technology interest is headed and what they believe is still missing.
Photo: Kaspars Grinvalds via Adobe Stock
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Here's how Patricia Dewar is shaping growth at Dewar Nurseries through diversification, retail expansion, and data-driven decision-making.
Photo: Dewar Nurseries
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Here's how Karin Walters is shaping growth at Walters Gardens through flexibility, efficiency, and a disciplined approach to automation.
Photo: Walters Gardens
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From practical automation to pricing discipline, Top 100 growers share the most effective ways they improved profitability in 2025 .
Photo: Doreen Wynja
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Andy Wilcox covers how a new wireless irrigation control system is helping McCorkle Nurseries reduce maintenance, add zones easily, and manage frost protection .
Photo: Tim Hall, Nelson Irrigation Co.
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Dr. Allan Armitage contemplates the dangerous trend of aggressive plants being added to invasive plant species lists .
Photo: Allan Armitage
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New software systems are helping Van Wingerden Greenhouses make fundraising sales more efficient while supporting e-commerce and fulfillment goals .
Photo: Van Wingerden Greenhouses
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A new propagation facility is helping Wenke/Sunbelt Greenhouses increase starter plant production with a more controlled environment .
Photo: Wenke/Sunbelt Greenhouses
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After a period of expansion, the nation’s largest floriculture operations are focusing on efficiency, consolidation, and what comes next.
For the complete Top 100 ranking for 2026, click here .
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What the Top 100 Can Teach Us About Problem Solving
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4 Trends Shaping the Future of Biologicals
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What Growers Want from Greenhouse Technology
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Paths to Growth: Growth Through Diversification with Patricia Dewar
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Paths to Growth: A Measured Approach to Growth with Karin Walters
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Taking Action on Profitability
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Simplifying Irrigation Control at McCorkle Nurseries
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Why Aggressive Does Not Mean Invasive in Native Plants
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From Fundraisers to Fulfillment with Van Wingerden Greenhouses
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Wenke/Sunbelt Greenhouses Expands Propagation Capacity
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Greenhouse Grower’s 2026 Top 100 Growers: The Complete List
What the Top 100 Can Teach Us About Problem Solving
During the drafting of the 2026 Top 100 Growers list , the concept of “integrated plant health management” was brought up frequently. The idea is centered around thinking more broadly about how to prevent problems from developing in the first place .
4 Trends Shaping the Future of Biologicals
Experts from BioWorks and Kansas State University explain why more floriculture growers are turning to biologicals , and what barriers still remain.
What Growers Want from Greenhouse Technology
Top 100 growers have shared where their technology interest is headed and what they believe is still missing.
Paths to Growth: Growth Through Diversification with Patricia Dewar
Here’s how Patricia Dewar is shaping growth at Dewar Nurseries through diversification, retail expansion, and data-driven decision-making.
Paths to Growth: A Measured Approach to Growth with Karin Walters
Here’s how Karin Walters is shaping growth at Walters Gardens through flexibility, efficiency, and a disciplined approach to automation.
Taking Action on Profitability
From practical automation to pricing discipline, Top 100 growers share the most effective ways they improved profitability in 2025 .
Simplifying Irrigation Control at McCorkle Nurseries
Andy Wilcox covers how a new wireless irrigation control system is helping McCorkle Nurseries reduce maintenance, add zones easily, and manage frost protection .
Why Aggressive Does Not Mean Invasive in Native Plants
Dr. Allan Armitage contemplates the dangerous trend of aggressive plants being added to invasive plant species lists .
From Fundraisers to Fulfillment with Van Wingerden Greenhouses
New software systems are helping Van Wingerden Greenhouses make fundraising sales more efficient while supporting e-commerce and fulfillment goals .
Wenke/Sunbelt Greenhouses Expands Propagation Capacity
A new propagation facility is helping Wenke/Sunbelt Greenhouses increase starter plant production with a more controlled environment .
Greenhouse Grower’s 2026 Top 100 Growers: The Complete List
After a period of expansion, the nation’s largest floriculture operations are focusing on efficiency, consolidation, and what comes next.
For the complete Top 100 ranking for 2026, click here .
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Highlights from Greenhouse Grower’s May 2026 Issue