Key Points. 1  Dietary supplements contain a variety of ingredients, such as vitamins, minerals, amino acids, and herbs or other botanicals. Research has confirmed health benefits of some dietary supplements but not others.
The Dwarf Alberta Spruce typically grows to a height of 10 to 12 feet, but it is a slow growing tree. It will take more than 25 years to completely mature, making it a great decor when plotted, as it will not outgrow your porch, sunroom, or landscape anytime soon.Alberta spruce thrives in zones 3 through 8. dwarf cultivar, 'Conica', is popular as a garden plant. Fast Growing Trees Nursery also carries elegant dwarf Alberta spruce spiral topiaries. Dwarf varieties are designed to be smaller than the parent tree, and are often used as vertical accent specimens within the landscape.
Top Growth Rates. The Sitka spruce dwarfs its cousins in maximum attainable height and rate of growth. 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. 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. With a branch spread of 25 feet across, landscape designers will often arrange Norway spruces to provide privacy and wind blockage for houses on larger lots.