Define dia-. dia- synonyms, dia- pronunciation, dia- translation, English dictionary definition of dia-. or di- pref. 1. Through: diachronic. 2. Across: diatropism. or prefix 1. through, throughout, or during: diachronic. 2. across: diactinic. 3.
Print This Page. Baby Blue Eyes Spruce is a conical-shaped, fully branched selection of Colorado Spruce with a uniform growth habit and intense blue needles. On the average it will grow upward about 8 inches per year compared to some Colorado Spruce that can grow as much as 12 to 18 inches upward per year. Since it is a grafted plant , the growth rate can vary depending on the rootstock (understock) that it is grafted on to.
Increasing the growth rate of Blue Spruce. Discussion in 'Homeowner Helper Forum' started by cmontana, Apr 25, 2005. I planted four Blue Spruce trees last spring. They were 6 foot tall (including the root ball) and we planted them about eight feet apart in a raised berm that is eight feet across and two feet tall in the center. They seem to be doing well, but I'm wondering what I can do to boost their growth rate.