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Rydberg's Penstemon
Penstemon rydbergii
  
About Rydberg's Penstemon (Penstemon rydbergii) 22 Nurseries Carry This Plant Rydberg's Penstemon (Penstemon rydbergii) is a native perennial herb that grows in Central and Northern California, primarily in the High Sierra Nevada region. It is moderately fast growing and moderately long-lived. It grows in an upright form to a height of 3 feet, with active growth during the spring. Flowers are blue and striking, and bloom in the mid summer. Leaves are medium green and deciduous. It tends to grow in moist meadows and streambanks, at elevations from 3,900-10,200 feet.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
1 - 3 ft tall
3 ft wide

Form
Form
Upright

Growth Rate
Growth Rate
Moderate

Dormancy
Dormancy
Winter Deciduous

Flower Color
Flower Color
Blue, Lavender, Purple

Flowering Season
Flowering Season
Summer

Wildlife Supported
 
Penstemons are very attractive to hummingbirds and host plants to Chalcedon Checkerspot, Common Buckeye and Arachne Checkerspot butterflies

Landscaping Information
Sun
Sun
Full Sun, Part Shade

Moisture
Moisture
Moderate - High

Summer Irrigation
Summer Irrigation
Keep moist

Nurseries
Nurseries

Cold Tolerance
Cold Tolerance
Tolerates cold to -15° F

Soil Drainage
Soil Drainage
Slow

Soil Description
Soil Description
Tolerates a variety of soils. Soil PH: 5.0 - 6.8

Common uses
Common uses
Deer Resistant, Bird Gardens, Hummingbird Gardens, Butterfly Gardens, Bee Gardens

Companion Plants
Companion Plants

Propagation
Propagation?
For propagating by seed: 2 mos. stratification (Williams 1986).

Natural Setting
Site Type
Site Type
Moist meadows and streambanks of the Sierras

Climate
Climate
Annual Precipitation: 5.0" - 118.6", Summer Precipitation: 0.41" - 4.06", Coldest Month: 19.9" - 48.3", Hottest Month: 40.8" - 76.3", Humidity: 0.38" - 30.39", Elevation: 77" - 12091"

Alternative Names
Common Names: Meadow Beardtongue, Rydberg Penstemon


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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