ROYAL PENSTEMON

ROYAL PENSTEMON GROWS BEST IN

ROYAL PENSTEMON suitable for counties:
WASHINGTON: Adams, Benton, Chelan, Columbia, Douglas, Garfield, Grant, Kittitas, Klickitat, Lincoln, Okanogan, Spokane, Whitman, Yakima
UTAH: Beaver, Box Elder, Juab, Tooele
OREGON: Baker, Crook, Deschutes, Gilliam, Grant, Harney, Jackson, Jefferson, Josephine, Klamath, Lake, Malheur, Sherman, Union, Wallowa, Wasco, Wheeler
NEVADA: Carson City, Churchill, Douglas, Elko, Esmeralda, Eureka, Humboldt, Lander, Lyon, Mineral, Nye, Pershing, Storey, Washoe, White Pine
IDAHO: Ada, Bonneville, Butte, Canyon, Cassia, Clark, Custer, Elmore, Fremont, Gooding, Owyhee, Payette, Valley, Washington
CALIFORNIA: Alpine, Amador, El Dorado, Inyo, Kern, Lassen, Los Angeles, Mariposa, Modoc, Mono, Nevada, Placer, Plumas, Riverside, San Bernardino, San Diego, Santa Barbara, Shasta, Sierra, Siskiyou, Tulare, Tuolumne, Ventura

Royal penstemon belongs to family of scrophulariaceae plants, its species name is speciosus. This plant grows actively in spring and summer. Royal penstemon has gray-green foliage and bears blue colored flowers. Royal penstemon booms in mid summer.The plant grows in semi-erect form with multiple stems. Royal penstemon is a moderately growing plant, a mature Royal penstemon can grow up to 2.5 feet. This plant is highly tolerant to draught conditions.

Active Growth Period : Spring and Summer Flower Color : Blue
Foliage Color : Gray-Green Growth Form : Multiple Stem
Growth Rate : Moderate Height, Mature (feet) : 2.5
Drought Tolerance : High Frost Free Days, Minimum : 110
Temperature, Minimum (°F) : -33 Palatable Human : No
Bloom Period : Mid Summer
SHOW ALL PLANT CHARACTERSTICS

Reproduction

Bloom Period : Mid Summer Commercial Availability : Contracting Only
Fruit/Seed Abundance : High Fruit/Seed Period Begin : Spring
Fruit/Seed Period End : Summer Fruit/Seed Persistence : No
Propogated by Bare Root : No Propogated by Bulbs : No
Propogated by Container : No Propogated by Corms : No
Propogated by Cuttings : No Propogated by Seed : Yes
Propogated by Sod : No Propogated by Sprigs : No
Propogated by Tubers : No Seeds per Pound : 400000
Seed Spread Rate : Slow Seedling Vigor : Medium
Small Grain : No Vegetative Spread Rate : None

Use

Berry/Nut/Seed Product : No Christmas Tree Product : No
Fodder Product : No Fuelwood Product : - -
Lumber Product : No Naval Store Product : No
Nursery Stock Product : No Palatable Browse Animal : - -
Palatable Graze Animal : - - Palatable Human : No
Post Product : No Protein Potential : - -
Pulpwood Product : No Veneer Product : No

Physiology

Active Growth Period : Spring and Summer After Harvest Regrowth Rate : Slow
Bloat : None C:N Ratio : Medium
Coppice Potential : No Fall Conspicuous : No
Fire Resistance : No Flower Color : Blue
Flower Conspicuous : Yes Foliage Color : Gray-Green
Foliage Porosity Summer : Porous Foliage Porosity Winter : Porous
Foliage Texture : Coarse Fruit Color : Brown
Fruit Conspicuous : No Growth Form : Multiple Stem
Growth Rate : Moderate Height at Base Age, Maximum (feet) : - -
Height, Mature (feet) : 2.5 Known Allelopath : No
Leaf Retention : No Lifespan : Long
Low Growing Grass : No Nitrogen Fixation : None
Resprout Ability : No Shape and Orientation : Semi-Erect
Toxicity : None

Growth Requirements

Adapted to Coarse Textured Soils : Yes Adapted to Medium Textured Soils : Yes
Adapted to Fine Textured Soils : No Anaerobic Tolerance : None
CaCO3 Tolerance : Medium Cold Stratification Required : No
Drought Tolerance : High Fertility Requirement : Low
Fire Tolerance : Medium Frost Free Days, Minimum : 110
Hedge Tolerance : None Moisture Use : Low
pH (Minimum) : 6.4 pH (Maximum) : 8.0
Planting Density per Acre, Minimum : - - Planting Density per Acre, Maximum : - -
Precipitation (Minimum) : 24 Precipitation (Maximum) : 24
Root Depth, Minimum (inches) : 14 Salinity Tolerance : None
Shade Tolerance : Intolerant Temperature, Minimum (°F) : -33

PLANTS SIMILAR TO ROYAL PENSTEMON

ROYAL PENSTEMON GALLERY

royal penstemon
Brother Alfred Brousseau. Courtesy of St. Mary's College of California. İSt. Mary's College of California.
royal penstemon
Brother Alfred Brousseau. Courtesy of St. Mary's College of California. İSt. Mary's College of California.
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İGary A. Monroe. United States, CA, El Dorado Co.
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İGary A. Monroe. United States, NV, Carson City Rural Area, Prey Meadows. June 8, 2003.
royal penstemon
İGary A. Monroe. United States, NV, Carson City Rural Area, Prey Meadows. June 8, 2003.
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İGary A. Monroe. United States, NV, Carson City Rural Area, Prey Meadows. June 8, 2003.
royal penstemon
İGary A. Monroe. United States, NV, Carson City Rural Area, Prey Meadows. June 8, 2003.
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İGary A. Monroe. United States, NV, Washoe Co., Garden. May 26, 2003.
royal penstemon
İGary A. Monroe. United States, NV, Washoe Co., Garden. May 29, 2003.
royal penstemon
Margaret Williams. Courtesy of Nevada Native Plant Society. İNevada Native Plant Society.
royal penstemon
Margaret Williams. Courtesy of Nevada Native Plant Society. İNevada Native Plant Society.
royal penstemon
Margaret Williams. Courtesy of Nevada Native Plant Society. İNevada Native Plant Society.
royal penstemon
Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. United States, NV.
royal penstemon
Sheri Hagwood. Bureau of Land Management. United States, ID, Bureau of Land Management Jarbidge Resource Area. June 30, 2005.
royal penstemon
Sheri Hagwood. Bureau of Land Management. United States, ID, Bureau of Land Management Jarbidge Resource Area. June 25, 2003.
royal penstemon
İGary A. Monroe. United States, CA, Inyo Co., Furnace Creek. May 11, 2007.
royal penstemon
İGary A. Monroe. United States, CA, Inyo Co., Furnace Creek. May 11, 2007.

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