GPN - Greenhouse Product News

GPN - Greenhouse Product News GPN provides professional growers with cutting edge information.
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Replacing an aging greenhouse heating system doesn't always mean starting from scratch. Discover how unit heaters can im...
08/21/2026

Replacing an aging greenhouse heating system doesn't always mean starting from scratch.

Discover how unit heaters can improve efficiency, climate control and installation flexibility while minimizing downtime ➡️ https://gpnmag.com/article/greenhouse-unit-heater-retrofits/

Modine Manufacturing Company

Biological control agents can be an important part of an IPM program — but they don’t perform the same way on every crop...
08/21/2026

Biological control agents can be an important part of an IPM program — but they don’t perform the same way on every crop.

Plant characteristics such as leaf trichomes can slow the movement of parasitoids and predators, making it harder for them to locate pests. Understanding these crop-specific challenges can help greenhouse growers make more informed biological control decisions.

Learn more: https://gpnmag.com/article/challenges-of-biological-control-agents/

Meet Danielle Ernster, Marketing Director at BioTherm Solutions and a 2026 Forty Under 40 honoree! Danielle found her pl...
08/20/2026

Meet Danielle Ernster, Marketing Director at BioTherm Solutions and a 2026 Forty Under 40 honoree!

Danielle found her place in horticulture through marketing and has spent the past eight years sharing the stories of growers and the impact of the industry. From creating Grower Stories content to designing trade show experiences, Danielle brings creativity and connection to everything she does.

Congratulations, Danielle!

We want to thank all of our sponsors in helping us celebrate the next generation of horticulture: AmericanHort, BASF, Jack's Classic, Nufarm US Crop Protection, PRO-MIX Gardening, Prospiant, Suntory Flowers and Syngenta Flowers NA.

Take a look at all of this year's Forty Under 40 honorees at https://gpnmag.com/40Under40.

Big color. Repeat blooms. Grower-friendly production.Proven Winners ColorChoice ‘Sonic Bloom Punch’ weigela delivers vib...
08/19/2026

Big color. Repeat blooms. Grower-friendly production.

Proven Winners ColorChoice ‘Sonic Bloom Punch’ weigela delivers vibrant fuchsia-pink flowers from spring through fall, along with the adaptability and manageable growth growers need.

In this GPN Culture Report, get practical production tips covering pH and EC, temperature, watering, pruning and finishing for a strong, market-ready crop.

Read more: https://gpnmag.com/article/culture-report-sonic-bloom-
punch-weigela/

Spring Meadow Nursery, Inc.

Greener Roots Farm is expanding hydroponic vertical farming in Tennessee with a focus on locally grown herbs, leafy gree...
08/19/2026

Greener Roots Farm is expanding hydroponic vertical farming in Tennessee with a focus on locally grown herbs, leafy greens and microgreens.

The company combines controlled-environment agriculture with business discipline to improve efficiency and sustainable production. Automation, data monitoring and local distribution continue to support its long-term growth strategy ➡️ https://gpnmag.com/article/greener-roots-farm-vertical-farming-tennessee/

Greener Roots Farm

Meet Claire Zuidervliet, Owner and Grower at Octoraro Native Plant Nursery and a 2026 Forty Under 40 honoree! Claire’s l...
08/18/2026

Meet Claire Zuidervliet, Owner and Grower at Octoraro Native Plant Nursery and a 2026 Forty Under 40 honoree!

Claire’s lifelong passion for plants has grown from childhood experiences on her family’s farm to a career focused on native plants, conservation and propagation. Today, she is proud to help continue Octoraro’s 36-year legacy while growing plants that support landscapes and communities.

Congratulations to Claire on being named a Forty Under 40 honoree!

We want to thank all of our sponsors in helping us celebrate the next generation of horticulture: AmericanHort, BASF, Jack's Classic, Nufarm US Crop Protection, PRO-MIX Gardening, Prospiant, Suntory Flowers and Syngenta Flowers NA.

Take a look at all of this year's Forty Under 40 honorees at https://gpnmag.com/40Under40.

What goes into breeding an award-winning calibrachoa? Danziger is taking a grower-first approach — developing varieties ...
08/17/2026

What goes into breeding an award-winning calibrachoa?

Danziger is taking a grower-first approach — developing varieties with compact habits, consistent performance, standout colors and lower input needs.

See how trialing across different growing environments and listening to grower feedback are helping shape the next generation of calibrachoa.

Read more: https://gpnmag.com/article/calibrachoa-breeding-danziger-innovation/

Danziger Annuals & Perennials

The August issue of GPN is here!Explore the latest ideas, insights and conversations shaping the horticulture industry. ...
08/14/2026

The August issue of GPN is here!

Explore the latest ideas, insights and conversations shaping the horticulture industry. From production and plant health to technology, labor and grower innovation, this issue offers practical information for today’s greenhouse professionals.

Read the issue: https://gpnmag.com/magazine/august-2026/

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