March 20, 2018
Survey Says: Poinsettia Prices, Sales, and Production Increased in 2017
Traditional reds were still bestsellers, but interest continues to grow in white and novelty varieties. Greenhouse Grower’s annual survey provides an in-depth look at the holiday season.
March 13, 2018
California Spring Trials 2018 Northern Region Preview: Benary, American Takii, Sakata Ornamentals, Beekenkamp, and More
Check out this California Spring Trials 2018 Northern Region preview of new varieties from Benary, Thompson & Morgan, American Takii, Sakata Seed, Beekenkamp, and Plug Connection.
March 9, 2018
GCA Announces Complete Seattle Garden Center Summer Tour Details
The Garden Centers of America Summer Tour in Seattle will feature visits to some of the most unique plant retailers in the Pacific Northwest.
March 6, 2018
California Spring Trials 2018 Northern Region Preview: Spring Meadow Nursery, Syngenta, Danziger, Cohen, Hishtil, Jaldety, Nir
Check out this California Spring Trials 2018 Northern Region preview of new varieties from Spring Meadow Nursery, Syngenta Flowers, Danziger, Cohen Nurseries, Hishtil Nurseries, Jaldety Nurseries, and Nir Nurseries.
March 4, 2018
Monitoring Carbon Dioxide in the Greenhouse
In addition to temperatures conducive to growth, light (photosynthetically active radiation; PAR, which was covered in part 3 of this series), water, and nutrients, plants also require carbon dioxide (CO2) for photosynthesis (carbon assimilation), which ultimately affects plant growth, vigor, and vegetable and cut flower yield. Carbon dioxide is an odorless and colorless trace gas. Today, ambient CO2 levels outdoors comprise 0.04% of atmospheric volume, or around 400 μmol∙mol−1 (or parts per million, ppm). Plants take up CO2 by diffusion, through small pores called stomates that are primarily located on the underside of leaves. The opening and closing of stomates can be influenced by leaf and air temperatures, light levels, humidity, water stress, CO2 concentration, and oxygen (O2) in the air and leaf. Thus, if any of these environmental or cultural factors used for photosynthesis are limiting in the greenhouse, plant growth and yield are less. Until recently, the vast […]
March 2, 2018
How to Keep Your Perennials Healthy and Disease-Free
Disease control through scouting, chemical rotation, and disease-resistant plants is essential to keep your perennials in top-notch shape.
February 26, 2018
The Benefits of a Greenhouse Maintenance Plan and Checklist
A greenhouse maintenance plan and checklist can reduce equipment failures, improve equipment efficiency, and boost long-term profits.
February 26, 2018
20 Technology Trends Driving the Greenhouse Industry in 2018
From automation to artificial intelligence, check out this video for a closer look at how greenhouse growers are investing in technology in 2018.
February 25, 2018
How Two Leading Greenhouse Growers Are Committed to Quality in 2018
Greenhouse Grower recently asked its two most recent Head Grower Excellence in Quality award winners about the steps they take to improve plant quality. Here’s what they had to say.