Sitka Spruce & Hybrids (Picea sitchensis & hybrids) - SS & SXS Below are recommended stocktypes, followed by coded designations, average height and root collar diameter. PRT produces all stocktypes, so please contact your local Customer Support Representative for further options
SS PSB 313B 160/65	SS PSB 410 112/80	SS PSB 415B 112/105	SS PSB 415D 77/170	SS PSB 515A 60/250	SS PSB 615A 45/340	SS PBR 0.5+1.5
4	6S	6	10	15	20	Plug Transplant
18 cm	20 cm	22 cm	26 cm	33 cm	35 cm	35 cm
3.0 mm	3.2 mm	3.5 mm	4.0 mm	4.5 mm	5.0 mm	7.0 mm