What is a good heat resistant variety of rhubarb to grow in Delaware?
Rhubarb, a perennial native to Siberia, grows more vigorously and lives longer where summers are cool and moist and the soil freezes deeply during the winter. Rhubarb is commonplace in gardens throughout the coolest sections of the country, although it can be grown as far south as our Zone 7.
Location, soil, and watering are very important considerations in our area. Partial afternoon shade is helpful, although heavy shade should be avoided. Rhubarb tolerates most soils but grows best on fertile, well-drained, moist, soils that are high in organic matter.
Recommended varieties (University of Maryland) include Cherry Red, Valentine, and Victoria. Cherry Red is a variety grown in California (University of California-Davis)
For more information on growing rhubarb see these fact sheets:http://www.shelbycountytn.gov/DocumentCenter/Home/View/1144