RT Journal Article SR Electronic T1 Propagation protocol for blue elderberry (Sambucus nigra L. ssp. cerulea (Raf.) Bolli) JF Native Plants Journal JO NATIVE PLANTS JOURNAL FD University of Wisconsin Press SP 254 OP 259 DO 10.3368/npj.19.3.254 VO 19 IS 3 A1 McDonough, Thomas C A1 Regan, Donald J A1 Nelson, Andrew S YR 2018 UL http://npj.uwpress.org/content/19/3/254.abstract AB We present our techniques for producing blue elderberry (Sambucus nigra L. ssp. cerulea (Raf.) Bolli [Adoxaceae]) from seeds at a container nursery in northern Idaho. By applying a gibberellic acid treatment combined with a cold, moist stratification we are able to re liably break seed dormancy and produce an annual crop of seedlings that are 30 cm (12 in) tall with a root collar diameter > 4 mm (0.16 in).