Baccharis halimifolia L.
Groundseltree, Sea-myrtle, Consumptionweed, Eastern baccharis, Groundsel, Groundsel bush, Salt marsh-elder, Salt bush, Florida groundsel bush
Asteraceae (Aster Family)
Synonym(s): Baccharis halimifolia var. angustior
USDA Symbol: BAHA
Groundseltree or sea myrtle’s numerous branches from short trunks are covered densely with branchlets. The 6-12 ft. , deciduous shrub bears gray-green, somewhat lobed, oval leaves which are semi-persistent in the North. White to green flowers occur in small, dense, terminal clusters. Probably the most significant landscape feature is the silvery, plume-like achenes which appear in the fall on female plants resembling silvery paintbrushes.
Apparently extending its natural range inland from the coastal plain, Florida Groundsel Bush is the only native eastern species of the aster family reaching tree size. Baccharis is the ancient Greek name (derived from the god Bacchus) of a plant with fragrant roots. The Latin species name means with the leaves of Halimus, an old name for Saltbush, an unrelated shrub. Tolerant of saltwater spray, this handsome ornamental is one of the few eastern shrubs suitable for planting near the ocean.
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Plant CharacteristicsDuration: Perennial
Leaf Retention: Semi-evergreen
Leaf Arrangement: Alternate
Breeding System: Flowers Unisexual , Dioecious
Fruit Type: Achene
Size Notes: Height to 15 feet.
Leaf: Of two kinds: those subtending the flowering heads elliptic, rounded or slightly pointed at the tip, toothless, smooth; those lower on the stern elliptic-ovate to ovate, pointed at the tip, coarsely toothed, smooth, up to 3 inches long.
Autumn Foliage: yes
Flower: Many crowded together into heads, all very narrowly tubular, whitish, with several flowers per head; each head up to 1/8 inch long, subtended by narrow, green-tipped bracts.
Fruit: Achenes flattened, ribbed, very small, subtended by white hairs called the pappus.
Size Class: 6-12 ft.
Bloom InformationBloom Color: White
Bloom Time: Aug , Sep , Oct
DistributionUSA: AL , AR , CT , DC , DE , FL , GA , LA , MA , MD , MS , NC , NJ , NY , OK , PA , RI , SC , TX , VA
Native Distribution: Mex. & e. TX to FL, n. to coast of MA; believed to have once been restricted to the outer Coastal Plain, but now widely spread inland
Native Habitat: Salt marshes; shores; wet, disturbed places
Growing ConditionsWater Use: High
Light Requirement: Part Shade
Soil Moisture: Wet
Soil pH: Circumneutral (pH 6.8-7.2)
CaCO3 Tolerance: Low
Soil Description: Wet to droughty, gravel to fine sands. Sandy Loam, Sandy, Acid-based.
Conditions Comments: No disease or insect problems, but the weak wood is easily broken. Fast-growing. Salt tolerant.
BenefitUse Ornamental: Showy, Erosion control
Use Wildlife: Cover, Nectar-bees, Nectar-butterflies, Nectar-moths, Nectar-insects, Seeds-granivorous birds
Conspicuous Flowers: yes
PropagationDescription: Increase by sowing seed or taking cuttings in summer. Germinating seeds under mist or a plastic tent is recommended in some sources. Others suggest sowing seeds in sandy seed beds in fall or early spring.
Seed Collection: Not Available
Seed Treatment: No pretreatment is necessary.
Commercially Avail: yes
National Wetland Indicator Status
From the National Suppliers DirectoryAccording to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Edge of the Woods Native Plant Nursery - Orefield, PA
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Crosby Arboretum - Picayune, MS
Natural Biodiversity - Johnstown, PA
Wellspring Organic Farm and Education Center - West Bend, WI
BibliographyBibref 841 - Native Alternatives to Invasive Plants (2006) Burrell, C. C.
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
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Additional resourcesUSDA: Find Baccharis halimifolia in USDA Plants
FNA: Find Baccharis halimifolia in the Flora of North America (if available)
Google: Search Google for Baccharis halimifolia
MetadataRecord Modified: 2016-01-13
Research By: TWC Staff