Full Record

Name        : Picea mariana (Mill.)B.S.P.                                                                                                                                                                                                                                                                                                                                   
Cultivar    : Black spruce                                                                                                                                                                                                                                                                                                                                                  
Cutting Type: Tip cutting 4" from lower 1/3 of tree.
Age-Stage   : 7-18 year old tree
When taken  : June
Medium      : perlite
Auxin       : [
Structure   : mist
Bottom Heat : Bottom Heat
% Rooting   : 67% w/heel cutting
Time to root: 15 weeks
Care        : 4" cutting but new shoots were 0-4" length of new shoots
Location    : Quebec, Canada
Reference   : Girouard, R.M. 1970. Rooting plain + heel cuttings of
              spruce. The Pl. Prop. 16(1):7-12.  ]