A page about growing greenhouse crops and flowers by the UMass Extension Greenhouse Crops and Floriculture program.
UMass Extension Greenhouse Crops and Floriculture Program provides information about growing greenhouse crops and flowers. Watch this page for upcoming events and updates. Share ideas about greenhouse crop and flower production and pest management.
05/22/2026
Highlights from Greenhouse Visits
Week of 5/18/2026
In this Issue:
Watering and Fertilizing Plants in Retail Area
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-may-22-2026
Greenhouse Updates will be posted regularly through the Spring.
Photo: Phosphorus deficiency of cauliflower by Geoffrey Njue
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05/01/2026
Highlights from Greenhouse Visits
Week of 4/27/2026
In this Issue:
Magnesium (Mg) Deficiency of Tomato Plants
Botrytis Blossom Blight on Petunia
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-may-1-2026
Greenhouse Updates will be posted regularly through the Spring.
Photo: Botrytis blossom blight on petunias by Angie Madeiras
04/24/2026
Highlights from Greenhouse Visits
Week of 4/20/2026
In this Issue:
Bacterial Leaf Spot on Zinnia
Thrips parvispinus (Short-spined thrips) on Peppers
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-24-2026
Greenhouse Updates will be posted regularly through the Spring.
Photo: Thrips parvispinus damage on pepper plants by Geoffrey Njue
04/17/2026
Highlights from Greenhouse Visits
Week of 4/13/2026
In this Issue:
Monitor Substrate pH for Iron Inefficient Crops
Botrytis Blight on New Guinea Impatiens
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-17-2026
Greenhouse Updates will be posted regularly through the Spring.
Photo: Iron deficiency in petunia by Geoffrey Njue
04/10/2026
Highlights from Greenhouse Visits
Week of 4/6/2026
In this Issue:
Nitrogen Deficiency in Geranium and Petunia
Aphids on Pansy and Hibiscus
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-10-2026
Greenhouse Updates will be posted regularly through the Spring.
Photo: Hibiscus in a Quarantine Greenhouse by Geoffrey Njue
04/03/2026
Highlights from Greenhouse Visits
Week of 3/30/2026
In this Issue:
Heat Stress of Geranium
Aphid Plant Banker System
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-april-3-2026
Greenhouse Updates will be posted regularly through the Spring.
Photo: Heat Stress Symptoms of Geranium by Geoffrey Njue
03/27/2026
Highlights from Greenhouse Visits
Week of 3/23/2026
In this Issue:
Iron Deficiency Symptoms in Gerbera
Possible Anthracnose Leaf Spots on Pansies
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-march-27-2026
Greenhouse Updates will be posted regularly through the Spring.
Photo: Iron deficiency in Gerbera by Geoffrey Njue
03/20/2026
Highlights from Greenhouse Visits
Week of 3/16/2026
In this Issue:
Pinching
Slug Damage
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-march-20-2026
Greenhouse Updates will be posted regularly through the Spring.
03/13/2026
Highlights from Greenhouse Visits
Week of 3/9/2026
In this Issue:
Thrips parvispinus (Short-spined thrips)
Greenhouse Updates will be posted regularly through the Spring.
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates-march-13-2026
03/09/2026
Highlights from Greenhouse Visits
Week of 3/2/2026
In this Issue:
Aphids
Western flower thrips
Fungus gnats and shore flies
Iron deficiency symptoms on Vinca vine (Catharanthus)
Chilling injury on begonia plugs
Greenhouse Updates will be posted regularly through the Spring.
https://www.umass.edu/agriculture-food-environment/greenhouse-floriculture/greenhouse-updates