Mount Vernon Northwestern Washington Research and Extension Center

Vegetable Research and Extension

Photo collage of watermelon tasting, tractor, dry beans

Grafting Vegetables

Vegetable grafting is a centuries-old technique utilized in Asia to improve plant production, reduce disease susceptibility, and increase soil utilization. Vegetable grafting was introduced in the United States almost 20 years ago and growers are becoming more aware of its attributes and potential. At Washington State University, we began vegetable grafting in 2009 with three crops: tomato, eggplant and watermelon.

Grafting Information

Vegetable Grafting: Watermelon. WSU Extension Fact Sheet FS100E 7 pages. Published January 2013.

Vegetable Grafting: Eggplant and Tomato. WSU Extension Fact Sheet FS052E 4 pages. Published October 2011.

Injerto de Verduras: Berenjenas y Tomates. Hoja informativa de la Universided Estatal de Washington FS052ES. 4 páginas. Publicado Agosto 2013.

Vegetable Grafting: The Healing Chamber. WSU Extension Fact Sheet FS051E 3 pages. Published October 2011.

Grafting Supplies, Sacha Johnson, Carol Miles, Patti Kreider, Gale Sterrett, and Jacky King.

Retail Rootstock Seed Suppliers, Sacha Johnson, Carol Miles, Patti Kreider, Gale Sterrett and Jacky King.

Grafting Presentations

Grafting Healing Chamber. Sacha Johnson, Carol Miles, Patti Kreider, Jonathan Roozen, Jacky King and Gale Sterrett, Washington State University. How to construct and manage a healing chamber for grafted vegetables. 2011.

History of Vegetable Grafting. Sacha Johnson, Carol Miles, Patti Kreider, Jonathan Roozen, Jacky King and Gale Sterrett, Washington State University. Summary of the history of vegetable grafting. Includes first known uses of vegetable grafting and current uses. 2011.

How to Graft Tomatoes and Eggplant. Sacha Johnson, Carol Miles, Patti Kreider, Jonathan Roozen, Jacky King and Gale Sterrett, Washington State University. Highlights splice grafting for tomato and eggplant, and how to manage newly grafted plants. 2011.

Transplanting Grafted Plants to the Field. Sacha Johnson, Carol Miles, Patti Kreider, Jonathan Roozen, Jacky King and Gale Sterrett, Washington State University. Reviews procedures and considerations for transplanting grafted vegetables into the field. 2011.

Resources

Commercial Cucurbit Rootstocks (USDA 2013). Common cucurbit rootstocks and their susceptibility to common diseases and pests. NOTE: seed of rootstocks listed may not be generally available, check seed catalogs for specific variety.

Commercial Tomato Rootstocks (USDA 2013). Common tomato rootstocks and their susceptibility to common diseases and pests. NOTE: seed of rootstocks listed may not be generally available, check seed catalogs for specific variety.

Disease Resistant Vegetable Varieties. Cornell University Plant Pathology Vegetable MD.

Grafting, Ohio State University Extension.

Grafting for Disease Management in Organic Tomato Production Webinar. Frank Louws of North Carolina State University and Cary Rivard of Kansas State University provide information about rootstock selection and the grafting procedure itself. eOrganic Webinar. 2011.

Grafting for Disease Resistance in Heirloom Tomatoes. North Carolina State University. 2006.

Grafting of Vegetables to Improve Greenhouse Production. Masayuki Oda, College of Agriculture, Osaka Prefecture University, Sakai Osaka 5998531. 1999.

Grafting Techniques for Greenhouse Tomatoes. UMass Amherst. 2014.

Grafting Techniques for Watermelon – University of Florida, IFAS Extension

Grafting Tomato Plants. Ohio State University. Step-by-step video of cleft and Japanese grafting techniques. 2009.

Grafting tomatoes for organic open field and high tunnel production. David Francis, Ohio State University. Overview of tomato grafting with a focus on commercial rootstock performance and current tomato rootstock breeding research at Ohio State University. eOrganic Webinar. 2010.

History and Technique of Tomato Grafting. North Carolina State Cooperative Extension. 2008.

How to graft tomato & eggplant: tube splice. AVRDC demonstrates how to graft as well as how to make grafting clips from poly tubing.

Tomato Grafting – North Carolina State University

Tomato Grafting – Ohio State University

Tomato Grafting for Disease Resistance and Increased Productivity – Sustainable Research & Education (SARE) Fact Sheet.

Vegetable Grafting, A research-based information portal. Supported by the Specialty Crop Research Initiative (SCRI) of the UDSA and NIFA.

Vegetable Grafting – The University of Arizona

Video showing graft healing. This 1-minute time lapse video shows the successful formation of a graft union in a 'Celebrity' tomato plant over a ten day period. By Kyle Craig.

Watermelon Grafting – Clemson University

Our pages provide links to external sites for the convenience of users. WSU Extension does not manage these external sites, nor does Extension review, control, or take responsibility for the content of these sites. These external sites do not implicitly or explicitly represent official positions and policies of WSU Extension.

Photo of cutting tomato scion material for splice grafting

Cutting tomato scion material for splice grafting.

Photo of healing chamber

The healing chamber structure where plants are held for 7 days following grafting.

Photo of grafted watermelon transplant in field

Grafted watermelon plant immediately after being transplanted into the field.

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