Tree Varieties Canaan Fir (similar in appearance to Fraser Fir) *Good branch strength *Bluish-green needles with silvery bottom 1-1.5″ long *Needle retention is very good Douglas Fir *Moderate to strong branch strength *Dark green/blue green soft needles 1–1.5 inches in length *Needle retention is very good Concolor Fir (aka White Fir) *Moderate to strong branch strength *Blue/green small, narrow needles 1.5-2 inches long *Needle retention is good Blue Spruce *Sturdy, heavy, dense branches *Blue/green needles (prickly) about 1 inch long *Needle retention is good *Excellent choice for heavier ornaments and lighting White Pine*Soft, pliable branches *Bluish/silver green needles 2.5-5 inches long *Needle retention is excellent to good *Best choice for lightweight ornaments and lighting