Stewartia sinensis (Chinese Stewartia)


Michael's Opinion

A spectacular small tree with paper thin, peeling bark, revealing sandstone tones underneath. Underbark is as smooth as marble stone. I

Botanical Information

FamilyTheaceae
GenusStewartia
Speciessinensis
CategoryWoody
TypeTree (deciduous), Shrub (deciduous)
References Print. Hsu, Eric, Timothy Boland, and Koen Camelbeke. "Stewartia in Cultivation." Plantsman. June 2008: 78-87. Print.
OriginNative to central China.
Pronunciation

Details

USDA Hardiness Zone7b - 8a
USDA Hardiness Ref.
Canadian Hardiness Zone7
Canada Hardiness Ref.
RHS Hardiness ZoneH5
RHS Hardiness Ref.
Temperature (°C)-15 -(-9)
Temperature (°F)5 - 15
Height8 m
Spread5 m
GrowthSlow
Flowering PeriodJune, July, August

Description and Growing Information

General DescriptionStewartia sinensis is a small tree or large shrub with spectacular bark and fragrant white cup-shaped flowers.
ID CharacteristicLarge, multi-stemmed shrub or small tree with peeling bark.
ShapeUpright with a broad crown.
LandscapePlant as a specimen in the landscape where it can viewed all year.
PropagationSoftwood cuttings taken after the terminal bud appears in the spring. Cut 5 - 8 cm off the new, soft growth, cutting directly across where old wood meets new. Remove the lower third of leaves and dip stem into a fungicide solution, followed by a rooting hormone and place in growing media.
CultivationGrows best in full sun, appreciating some shade on hot summer days. Soil should be moist, well-drained, acidic and high in organic matter.
PestsGenerally pest and disease free.
Notable SpecimensWakehurst Place, Ardingly, West Sussex, England. Aberglasney Gardens, Carmarthenshire, Wales, United Kingdom.
Bark/Stem DescriptionCinnamon-purple bark peels and flakes to reveal smooth, marble-like, tan and brown patches beneath.
Flower/Leaf Bud Description0.5-1 cm imbricate brown buds, pubescent, typically 2-3 scales showing.
Leaf DescriptionMedium to dark green, 5-12 ⨉ 4-6 cm. The blade is simple, ovate to elliptical, sharply pointed (acuminate), with minutely serrated margins and a prominent central vein. The base is cuneate leading into the reddish-purple petiole which is pubescent and 1.5 cm in length.
Flower Description4-5 cm in diameter with five white, cup-shaped, fringed petals with imbricate sepals and numerous cream-coloured stamens topped with yellow-orange anthers and often fragrant.
Fruit Description1-2.5 cm, reddish-brown, dehiscent capsules are pointed and divided into five sections, each of which contains seeds.
Colour DescriptionWhite inflorescence, medium to dark green leaves with the potential to turn yellow or red in autumn.
Texture DescriptionA fine to medium textured plant.

Photographs