JoAnn Peery
Horticulture Specialist
Central US and Central Canada
JoAnn Peery has supported many growers in unique and innovative projects for 25 years. With her strong expertise, her communication skills and her hands-on abilities, the growing media industry is no mystery for her. Her extensive knowledge combined with her MBA truly make her an expert.
My articles and videos
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Grower Profile: Conroe Greenhouses
Conroe Greenhouses consists of more than 300,000 sq. ft. of greenhouse production with another 50,000-sq. ft. of outside growing space for the exclusive production of bedding and color crops.
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How To Prevent And Solve Root Diseases in Poinsettias
Poinsettias have a longer production cycle than most greenhouse crops, and also one of the smallest sales windows.
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Function of Limestone in Growing Media
Greenhouse growers know that in order to achieve optimum nutrient availability for plant growth, the growing medium's pH for most crops should be in the 5.5-6.5 pH range.
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Grower Profile: Ritter Greenhouse
Ritter Greenhouses, located just outside St. Louis in Bridgeton, MO, was started in 1966 as a small greenhouse operation growing vegetable transplants used solely on the Ritters' family farm.
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Nitrogen’s Influence on Growing Medium pH
This article will focus on the third major factor: nitrogen. In standard greenhouse fertilizers, nitrogen is supplied as ammonium (NH4+), nitrate (NO3-) or urea.