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.
There are 35 species of spruce trees, with Colorado blue spruce one of the most popular, according to the Arbor Day Foundation. It grows to 50 to 75 feet in height and has that familiar Christmas tree shape. Spruce trees should be planted in full sun in USDA zones 2 to 8. One of the easiest ways to grow spruce trees is from seed.