Clethra alnifolia is a deciduous shrub found in areas such as Eastern N. America - Maine to New Jersey, south to Florida and Mississippi. A member of the Clethraceae family, Clethra alnifolia L is also known by its common name of Sweet Pepper Bush. The shrub can grow to a height of 2.5 meters and up to 2.5 meters wide. The preferred habitat of Swamps, damp thickets and sandy woods[43]., with LM soil and SN moisture levels. .

Sweet Pepper Bush is a zone 3 hardy plant that has medicinal uses - the medicinal usage rating of Sweet Pepper Bush is 0(Binary/Image)

Clethra alnifolia is 1 plant, whose flowers bloom typically in 8 - 9, and which is pollinated by Bees.

Cultivation tips: Prefers a well-drained lime-free sandy and peaty soil[11, 182]. It loves abundant moisture at its roots[11]. The plant prefers a sunny position or partial shade[164]. Dormant plants are hardy to about -30°c[184, 200]. A good bee plant[106], the flowers are very aromatic[K]. There are some named varieties developed for their ornamental value. 'Paniculata' has longer-lasting branching panicles of flowers[182]. Like the species type, the flowers of this cultivar are very sweetly scented[245]. Suckers are freely produced when . The plant is grown in conditions similar to its natural habitat[200], . The plant forming thickets[182]. Plants in this genus are notably resistant to honey fungus[200].

. The plant should best be propagated by Seed - sow early spring in a greenhouse[113]. Only just cover the seed and keep the pot moist.
Germination usually takes place within 1 - 3 months at 13°c[164]. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out once they are more than 20 centimeters tall in late spring or early summer after the last expected frosts. Cuttings of half-ripe wood, 7 - 10 centimeters with a heel, July/August in a frame[11, 113]. Very easy[113]. Root cuttings in December/January[113]. Suckers in the dormant season[113]. They can be planted out direct into their permanent positions if required. Layering of current years growth in late autumn. Takes 18 months. Can also be done in early spring[200].