Azaleas growth rate?

I planted some red hardy azaleas, six inch plants, that are supposed to grow to a mature size of 2-3 ft. I planted them a couple of months ago and they seem to be doing well but haven't changed much in size. I've read they have a slow growth rate...how slow?

Azaleas growth rate?
Azaleas do grow slowly. From experience, it will take 3 to 4 years to reach max height depending on soil and climate. Azaleas love acid, so water every 2 weeks with Miracle Grow for acid loving plants. When planting, try putting a little Epsom salts in the hole before planting. Azaleas also do better in part shaded areas.
Reply:Azaleas do grow quite slowly - expect them to reach full height in about 5-8 years, depending on soil conditions and how long the growing season is wherever you are.
Reply:I checked my Sunset Western Guide Book, it doesn't state how slow.

rene