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San Diego Povertyweed
Iva hayesiana
  
About San Diego Povertyweed (Iva hayesiana) 16 Nurseries Carry This Plant Iva hayesiana is a rare species of flowering plant in the daisy family known by the common names San Diego marsh-elder and San Diego povertyweed. It is native to Baja California, and to California only in the vicinity of San Diego. This is a shrubby perennial herb approaching maximum heights near one meter. Its green oval-shaped leaves are fleshy, hairy, aromatic, and 3 to 6 centimeters long. The flowers are nearly invisible; male flowers have translucent corollas and simple yellow stamens and female flowers, if they occur, lacking corollas altogether. This is a plant of mineral-rich waterways such as intermittent streams and alkali flats.

Iva hayesiana is a fast spreading, aromatic evergreen plant that is a great choice for ground cover or bank stabilization. In nature, it's usually found in wetland flats or moister areas, but it's still fairly drought tolerant, and very tolerant to garden conditions. If used for bank stabilization on dry slopes, it needs occasional water, but in flats and sites that retain slightly more moisture, it needs no supplementary irrigation. Plant in sun or part shade.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
2 - 4 ft tall
6 - 9 ft wide

Form
Form
Spreading

Growth Rate
Growth Rate
Fast

Dormancy
Dormancy
Evergreen

Fragrance
Fragrance
Fragrant - Pleasant

Flower Color
Flower Color
Yellow, Green

Wildlife Supported
Landscaping Information
Sun
Sun
Full Sun

Moisture
Moisture
Low

Summer Irrigation
Summer Irrigation
Max 1x / week once established

Nurseries
Nurseries

Ease of Care
Ease of Care
Very Easy

Cold Tolerance
Cold Tolerance
Tolerates cold to 10 - 20° F

Soil Drainage
Soil Drainage
Fast, Medium, Slow

Soil Description
Soil Description
Adaptable

Common uses
Common uses
Bank Stabilization, Groundcovers, Deer Resistant

Maintenance
Maintenance
Hedge clip down to 1-2 feet to keep as a lower ground cover.

Propagation
Propagation?
Spreads by layering - branches rooting when covered by soil.

Natural Setting
Site Type
Site Type
Alkaline flats

Climate
Climate
Annual Precipitation: 8.7" - 19.3", Summer Precipitation: 0.18" - 1.10", Coldest Month: 45.0" - 56.3", Hottest Month: 68.2" - 79.3", Humidity: 1.39" - 26.19", Elevation: 7" - 4290"

Alternative Names
Common Names: San Diego Marsh-elder


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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