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Verbena lasiostachys
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Verbena lasiostachys

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About Vervain (Verbena lasiostachys) Vervain (Verbena lasiostachys) is a native perennial herb in the Verbenaceae (Verbena) family that grows in northern, southern and central California, as well as Oregon. It is found primarily along the coast, in the Coast Ranges, foothills, and scattered inland locations. A pioneer species, t tends to grow in wet places, at elevations from 0-8200 feet. It is an aggressive spreader and should be used where it can be controlled. Its long blooming season is a plus, and it is a good butterfly plant.
Plant Description
Plant Type
Perennial herb

Max. Height
2.6 ft (0.8 m)

Max. Width
3 ft (0.9 m)

Summer Deciduous

Flower Color
Blue, Lavender, Purple

Flowering Season
Spring, Summer, Fall

Native Status

Natural Setting
Site Type
Wet places, ditches, marshes


Elevation ?
-253' - 8643'

Annual Precip. ?
5.7" - 86.0"

Summer Precip. ?
0.14" - 2.48"

Coldest Month ?
26.0° F - 56.4° F

Hottest Month ?
51.0° F - 84.1° F

Humidity ?
0.09 vpd - 35.28 vpd

Soil Description
Tolerates a variety of soils including sand and clay as long as adequate moisture is present

Soil PH
6.0 - 8.0

Fast, Medium, Slow, Standing

Cold Tolerance(° F)
Tolerates cold to -20° F

Landscaping Information
Ease of Care
moderately easy

Water Requirement ?
Moderate - High
Extremely Low
Very Low
Moderate - High

Moderately Popular

Max. Summer Water ?
1/week, Keep moist
No Summer Water
Keep moist

Prune runners at any time to control spread

Common uses
Hummingbird Gardens, Bird Gardens, Bee Gardens

Nursery Availability
Commonly Available

Other Names
Common Names
Western Vervain

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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