Chromolaena odorata (L.) King & H. Rob.
Blue Mistflower, Fragrant Mistflower, Blue Boneset, Fragrant Boneset, Jack In The Bush, Crucita, Siam Weed, Common Flossflower, Christmas Bush, Devilweed
Asteraceae (Aster Family)
Synonym(s): Eupatorium odoratum, Osmia odorata
USDA Symbol: CHOD
Chromolaena odorata is a deciduous sub-shrub in North America. (It is a shrub in the tropics.) Branched stems curve upward and are usually 2-6 ft. in height. Somewhat triangular-shaped leaves are virtually evergreen in extreme s. TX. Lilac to bright purplish-blue flowers cluster together into showy, ageratum-like flower heads.
Dies back to the roots in hard winters.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Retention: Deciduous
Size Notes: Up to about 8 feet tall, often much shorter.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: White , Blue , Purple
Bloom Time: Aug , Sep , Oct , Nov , Dec
Bloom Notes: Sometimes flowers year-round.
DistributionUSA: FL , TX
Native Distribution: Mexico and the Caribbean n. to Florida, s.e. TX, & the Rio Grande Plain
Native Habitat: Fence rows
Growing ConditionsWater Use: Low
Light Requirement: Part Shade
Soil Moisture: Dry
Soil Description: Various well-drained soils. Clay, Rocky, Sandy, Sandy Loam, Medium Loam, Clay Loam, Caliche type Limestone-based
Conditions Comments: Because of leggy growth habit, it should be cut back once/year. Dies back to the roots in hard winters. Can be trained on an espalier.
BenefitUse Ornamental: Ground cover, Showy, Blooms ornamental, Aromatic, Arbor, Mass planting, Patio pot plant
Use Wildlife: Nectar-bees, Nectar-butterflies, Nectar-insects, Browse, Seeds-granivorous birds
Conspicuous Flowers: yes
Nectar Source: yes
PropagationDescription: Propagate with seed or softwood cuttings.
Commercially Avail: yes
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Naval Air Station Kingsville - Kingsville, TX
Texas Parks and Wildlife Department - Austin, TX
NPSOT - Austin Chapter - Austin, TX
National Butterfly Center - Mission, TX
NPSOT - Williamson County Chapter - Georgetown, TX
BibliographyBibref 354 - Native & Naturalized Woody Plants of Austin & the Hill Country (1981) Lynch, D.
Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 291 - Texas Wildscapes: Gardening for Wildlife (1999) Damude, N. & K.C. Bender
Search More Titles in Bibliography
Web ReferenceWebref 57 - Atlas of Florida Plants (2020) Institute for Systematic Botany
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Chromolaena odorata in USDA Plants
FNA: Find Chromolaena odorata in the Flora of North America (if available)
Google: Search Google for Chromolaena odorata
MetadataRecord Modified: 2022-12-09
Research By: TWC Staff