While the majority of these coniferous tree species have a fairly unremarkable average growth rate between 6 inches and 11 inches per year the sitka spruce picea sitchensis norway spruce picea abies and colorado blue spruce picea pungens glauca are renowned for their extraordinarily fast rates of growth.
Green spruce tree growth rate.
Native to siberia this evergreen reaches heights of 70 feet with a narrow 10 foot spread.
Green giant is not the only biggie in this family.
The siberian spruce p.
Although rather large it does grow at a slow rate and can live around 80 years or more.
Next use the tree species growth factors table to find the growth factor associated with the species of tree.
Typically mature evergreen trees reach anywhere from twenty to sixty feet tall when taken care of properly.
The foliage consists of flat sprays of glossy bright green.
Green giant shrubs can climb to a towering height of 50 to 60 feet at maturity with a spread of 12 to 20 feet.
Cbh inches pi dbh inches where pi is the constant 3 141592.
That means you must keep up with the soil environment.
Emerald green is a semi dwarf cultivar that has a narrow pyramidal shape.
It has a low canopy and should not be planted underneath power lines.
The tree has urn shaped cones about 1 2 inch long that turn reddish brown in fall.
During its 500 year life a sitka spruce will reach between 160 and 220 feet with 60 inches per year growth rate until it reaches maturity.
This is the dbh of the tree.
White spruce is another good selection for a mid range grower.
Growing at a medium rate to 50 feet in 30 years this is the best evergreen tree for shady locations.
Most specimens are 7 to 15 feet in height occasionally reaching 20 feet.
If the growth rate matters to you and you want fast growing shade trees check in with a plant professional if necessary.
You can then estimate the age of the tree by multiplying this growth factor by the dbh in inches.
Omorika has an annual growth rate of 12 to 24 inches.
This spruce will grow to be around 50 tall x 20 wide at maturity.
The needles remain green throughout winter.
Coming in second with an average growth rate of 30 inches annually the norway spruce has an impressive yet manageable height between 40 and 60 feet.
Likes to be planted in full sun and well drained soils.