Cold hardiness & winter protection for grapevines

Dr. Imed Dami, Associate Professor of Horticulture & Crop Science at Ohio State University, shared his experience with Grapevine Cold Hardiness at the 2012 Eastern Viticulture Workshop in Mystic CT.

Dr. Imed Dami – OSU Horticulture and Crop Science

The greatest drop in crop yields comes from cold injury or damage to grapevines – more than by any insect or disease, explained Ohio State University’s Horticulture & Crop Science Associate Professor, Dr. Imed Dami at the Eastern Viticulture Workshop held in Mystic, CT.

Grapevines’ level of cold tolerance varies with age, the time of year and based on their age and the pattern of (warm) temperatures preceding the cold period. During the cooler winter months, northern grapevines that have gone dormant slowly are generally very tolerant of cold temperatures.

Temperatures below 32 degrees F can cause injury to plants that have not been slowly cooled. Temperatures below 20 degrees F will probably cause cluster and shoot damage and reduce yields the next season. [Learn more.]


About Sanne Kure-Jensen

Sanne Kure-Jensen is a frequent contributor to Country Folks, Country Folks Grower and Wine & Grape Grower bringing regional and national attention to agriculture in RI and across southern New England. She has also written for newsletters of the Northeast Organic Farming Association (NOFA), Holistic Management International (HMI), RI Beekeepers Association and RI Tree Council. Read Sanne’s work at her Sustainable Living page at Sanne has written successful grant applications for alternative energy projects, staff and board training, products and services. Clients include agricultural businesses, farm stand/markets and non-profit organizations. Recent successful grant projects include a $90,000 USDA Rural Development‘s Rural Energy For America Program (REAP), $10,000 Sustainable Agriculture Research and Education (SARE) Farmer and $20,000 Natural Resources Conservation Service (NRCS) Conservation Innovation Grant (CIG). Sanne is the part-time Administrator for NOFA/RI, a Rhode Island Certified Horticulturist and beekeeper. She is a NOFA Accredited Organic Land Care Professional and has lectured across southern New England on Beekeeping, Native Pollinators and Ecological Landscape Design. Learn more about the NOFA’s Land Care programs or contact Sanne for a garden consultation through the NOFA/RI website.
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