Clerodendrum trichotomum - Thunb.
Common Name Chou Wu Tong, Harlequin glorybower, Ferruginous clerodendrum, Harlequin Glory Bower
Family Verbenaceae
USDA hardiness 6-11
Known Hazards None known
Habitats Thickets on mountain slopes, throughout most of China except Nei Mongol, below elevations of 2400 metres[266].
Range E. Asia - China, Japan, Korea.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Fully Hardy Moist Soil Full sun

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Bloom Color: Red. Main Bloom Time: Early summer, Late summer, Mid summer. Form: Rounded, Upright or erect.

Clerodendrum trichotomum Chou Wu Tong, Harlequin glorybower, Ferruginous clerodendrum, Harlequin Glory Bower
Clerodendrum trichotomum Chou Wu Tong, Harlequin glorybower, Ferruginous clerodendrum, Harlequin Glory Bower
Physical Characteristics
 icon of manicon of lolypop
Clerodendrum trichotomum is a deciduous Tree growing to 6 m (19ft) by 3 m (9ft) at a medium rate.
It is hardy to zone (UK) 7. It is in flower from Aug to October. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects.Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil.


Woodland Garden Sunny Edge; Dappled Shade;
Edible Uses
Edible Parts: Leaves.
Edible Uses:

Young sprouts and leaves - cooked[105, 177].
Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Analgesic;  Antipruritic;  Antirheumatic;  Hypotensive;  Parasiticide;  Sedative.

The leaves are mildly analgesic, antipruritic, hypotensive and sedative[176, 218, 254]. They are used externally in the treatment of dermatitis and internally for the treatment of hypertension, rheumatoid arthritis, joint pain, numbness and paralysis[176, 218, 254]. When used in a clinical trial of 171 people, the blood pressure of 81% of the people dropped significantly - this effect was reversed when the treatment was stopped[254]. The plant is normally used in conjunction with Bidens bipinnata[218]. When used with the herb Siegesbeckia pubescens it is anti-inflammatory[254]. The roots and leaves are antirheumatic and hypotensive[147]. A decoction is used in the treatment of rheumatoid arthritis and hypertension[147]. The pounded seed is used to kill lice[218].


Other Uses

None known
Cultivation details
Landscape Uses:Espalier, Standard, Specimen. Succeeds in a sunny position in ordinary garden soil but prefers a fertile humus-rich well-drained loam[164, 200]. The soil must not be allowed to dry out in the growing season[1]. Requires a position sheltered from cold drying winds[1, 200]. Plants are generally hardy to about -15°c[184, 200], they succeed outdoors at Kew though the branches are pithy and are apt to die back in winter[11]. The sub-species C. trichotomum fargesii. (Dode.)Rehder. is somewhat hardier, tolerating temperatures down to about -20°c[184]. Plants produce the occasional sucker[182]. The leaves have a heavy unpleasant odour when crushed[11, 182]. Flowers are produced on the current seasons growth and are sweetly scented[200]. Special Features:Not North American native, Attractive flowers or blooms.
Seed - best sown as soon as possible in a greenhouse. Germination can be erratic but usually takes place within 20 - 60 days at 20°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 in late spring or early summer after the last expected frosts. Root cuttings, 6 - 8cm long, December in a greenhouse. High percentage[78]. Division of suckers in the dormant season. Very easy, they can be planted out direct into their permanent positions if required.
Other Names
Found In
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Clerodendrum bungeiGlory Flower, Rose glorybower, Cashmere Bouquet, Mexican Hydrangea, Glory Bower01
Clerodendrum cyrtophyllum 11
Clerodendrum japonicumJapanese glorybower11
Clerodendrum kwangtungense 10


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Readers comment
Carolyn Evans   Fri Jul 7 2006
The seeds make a good blue dye. Remove the outer covering of the seeds and simmer what is left in water. Use this water to dye wool or silk mordanted with copper. The leaves can also be used as a dye.
Ivan Viehoff   Thu Sep 7 2006
It is not uncommon to see the genus written Clerodrendron, but I suspect this is an old form. Clerodendrum is one of several genera in Verbenaceae which may be reclassified as Lamiaceae.
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Subject : Clerodendrum trichotomum  

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