Overt hypothyroidism is defined as a clinical syndrome of hypothyroidism associated with elevated TSH and decreased serum levels of T 4 or T 3. The measurement of thyroid autoantibodies helps in diagnosing an autoimmune process. However, this test should be ordered only if it will influence the decision to treat.
The American Rhododendron Society measures the growth rates of numerous species and hybrids. Speed of growth is determined by calculating how tall a plant grows in 10 years. Many rhododendron plants grow from 3 to 4 feet in 10 years, but some can grow up to 7 feet in 10 years.Some of the fastest growing rhododendrons are the Brittenhill Bugle, R. genestierianum, Ilam Cream, Mother of Pearl, Professor Hugo de Vries, Spicy Nutmeg, and the Whidbey Island.picy Nutmeg. Spicy Nutmeg is a fragrant, fast-growing rhododendron that has funnel-shaped, 3 1/2-inch wide flowers with wavy lobes. The flowers are pale purplish-pink with reddish-purple rays and spotting in the flower's funnel throat.
R. keiskei 'Dwarf' (dwarf Keisk rhododendron), a dwarf lepidote rhododendron, bears pale yellow 2-inch bell-shaped flowers and has olive-green 2-inch leaves that turn wine red in winter. It is a spreading plant, growing 2 1/2 feet tall and 4 feet wide.R. kiusianum (dwarf azalea) and R. nakaharai (dwarf azalea) are both dwarf azaleas. R. kiusianum blooms while still young, bearing white, pink, rose or purple flowers 1 to 1 1/2 inches across. The shiny 1-inch leaves sometimes turn red in winter.. racemosum 'Dwarf' (dwarf Mayflower rhododendron), a dwarf lepidote rhododendron, is a spreading semi-prostrate plant 2 feet high and up to 5 feet wide, with many-branched wiry stems. The 3/4-inch white or pink flowers begin to appear while the plant is still quite young.