All plants and shrubs seem to move in and out of fashion and Fothergilla are currently enjoying a cult status amongst many gardeners. However they are not so commonplace that you should be put off growing one.
Fothergilla major is a favourite plant for Autumn colour of reds, oranges and yellows that also produces frothy and fragrant white flowers in mid Spring. The spring leaves are glossy, dark green and rounded with toothed edges. Fothergilla leaves turn brilliant shades of red, orange and yellow in autumn. This deciduous shrub can grow to 20 feet but is best restricted in a small garden. It produces suckering stolens that may be propagated and plants can also be grown from seed.
Fothergilla gardenii or the Dwarf Fothergilla also called Dwarf Witchalder grows upto six foot high and is a better mannered version of Fothergilla major. All Fothergillas seem to like wet or moist soil and they should not be allowed to dry out.
A superb introduction from Commercial Nurseries is Fothergilla Blue Shadow with powdery blue foliage that was discovered as a sport from the cultivar ‘Mount Airy’.