|Figure 1. Illini Hardy shoot, flower buds show no visible damage. Photo KD, PSU.|
|Figure 2. Same shoot with buds cut open, with darkened tissue in buds. Photo KD, PSU.|
See my blog post for a discussion of what I recommended. http://teamrubus.blogspot.com/2012/04/freeze-2012-field-visits.html
Note: Although the name, Illini Hardy, would suggest this variety would be less susceptible to freeze injury, these photos indicate that buds of Illini Hardy are just as susceptible to damage as the Arkansas cultivars that we grow in NC. However, Illini Hardy dormant plants can tolerate lower temperatures than other blackberry varieties in the winter and is therefore grown in regions normally not considered suitable for blackberry production. It is not recommended for North Carolina.