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California Maiden Hair Fern
Adiantum jordanii
  
About California Maiden Hair Fern (Adiantum jordanii) 5 Nurseries Carry This Plant Adiantum jordanii is a perennial species Pteridaceae known by the common name California maidenhair. It is native to California and Baja California. It grows in shaded woods, usually in wetter spots such as moist rock outcropping and lower parts of north facing slopes. It can take a little sun near the coast or full shade inland. Each trailing leaf may reach over half a meter in length and is made up of many rounded green segments. Each segment has two to four lobes and it may split between the lobes, the underside of each segment bearing one to four sori. It remains evergreen with regular water or will go dormant if allowed to dry out in summer but should recover. It forms a slowly expanding clump. Adiantum jordanii is a host for the Sudden Oak Death pathogen, and for this reason it may be difficult to find in native plant nurseries.
Plant Description
Plant Type
Plant Type
Fern

Size
Size
1.6 ft tall
2 - 3 ft wide

Form
Form
Fountain

Dormancy
Dormancy
Evergreen, Summer Semi-Deciduous

Fragrance
Fragrance
None

Landscaping Information
Sun
Sun
Full Shade, Part Shade

Moisture
Moisture
Moderate - High

Summer Irrigation
Summer Irrigation
Max 1x / month once established

Nurseries
Nurseries

Cold Tolerance
Cold Tolerance
Tolerates cold to 15° F

Soil Drainage
Soil Drainage
Fast, Medium, Slow

Soil Description
Soil Description
Tolerates sand or clay soils. Soil PH: 5.5 - 8.2

Common uses
Common uses
Deer Resistant

Companion Plants
Companion Plants
Use in a damp, shaded area with other shade-loving plants such as other ferns, Wild Ginger (Asarum sp.), Bush Anemone (Carpenteria californica), Western Dichondra (Dichondra occidentalis), Dogwood (Cornus sp.), Wild Strawberry (Fragaria sp.), Alumroot (Heuchera sp.), Ocean Spray (Holodiscus discolor), Currant/Gooseberry (Ribes sp.), Meadow Rue (Thalictrum sp.), Bee Plant (Scrophularia californica), and Hummingbird Sage (Salvia spathacea)

Sunset Zones
Sunset Zones?
7, 9, 14, 15, 16, 17

Natural Setting
Site Type
Site Type
Shaded streamsides, seeps, springs, moist hillsides, north side of rock outcroppings

Climate
Climate
Annual Precipitation: 6.3" - 72.8", Summer Precipitation: 0.14" - 2.33", Coldest Month: 35.3" - 57.2", Hottest Month: 58.8" - 80.8", Humidity: 0.05" - 31.82", Elevation: -293" - 4907"

Alternative Names
Common Names: California Maidenhair Fern


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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