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.
Pruning & Spent Flower Removal. When to Prune: Typically, rhododendrons and azaleas are pruned after they bloom. This preserves the current seasons bloom, and allows time for the plant to produce flower buds for next years bloom. Rhododendrons and azaleas set next year's flower buds by mid to late summer.hen to Prune: Typically, rhododendrons and azaleas are pruned after they bloom. This preserves the current seasons bloom, and allows time for the plant to produce flower buds for next years bloom.