Regretfully they can also be a disappointment growing lots of foliage but no flowers. Folklore says you may have to wait five to seven years for the first blooms - perhaps it just seems that long for anxious gardeners. In most landscapes it's more like a two or three year wait.
Gardeners can help their plants reach the blooming stage with some preplant preparation.
Select a sunny site and enrich sandy sites with organic matter plus liberal quantities of manure. Then for the first year or two encourage growth by maintaining a moist soil and applying frequent but light feedings. Water weekly or when ever the surface inch of soil begins to dry. Feed lightly with a blossom booster type product once in March, June and September. Avoid dividing all but extra large clumps.