Alnus glutinosa 'Imperialis'
Plant Expert:
Michael Dirr Alnus glutinosa 'Imperialis'
Michael Dirr
Alnus glutinosa 'Imperialis'
Alnus glutinosa 'Imperialis' (click for large image)
Imperialis Black Alder, Imperialis Common Alder, Imperialis European Alder
Common Names:
  • Imperialis Black Alder
  • Imperialis Common Alder
  • Imperialis European Alder
More Images:
Imperialis Black Alder, Imperialis Common Alder, Imperialis European Alder
 
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Sun/Water Requirements:

  Partial/Full sun.
Dry to wet conditions.

Climate / Hardiness Zones:

  Zone 4 to Zone 7

Growth:

  Range: Grows from 30' to 50'.

Flowers:

  Color(s): Brown
Season(s): Spring
 

Foliage:

  Deciduous
Color: Leaves are dark green in the summer.
 

Fruit:

  Color: Black
Season(s): Fall
 

Landscape Value:

  Can be used as a specimen plant.

Dirr says: "a form with deeply and finely cut light green leaves; much more prominently incised than 'Lacinata'. It is fair to say that in youth the tree is ungainly but I have observed several handsome specimens in England that inspire me to try one in my garden; almost like a weeping willow in texture but branches are not as weeping, quite wispy, elegant and refines; seems to improve with age."

Other:

  Is Resistant to Drought
 
Alnus glutinosa 'Imperialis' is hardy in these areas:
Allegan, MIAlsip, ILAthens, MI
Augusta, MIBaltimore, MDBangor, MI
Battle Creek, MIBayside, NYBellmore, NY
Bellport, NYBethpage, NYBlue Point, NY
Bohemia, NYBrentwood, NYBrightwaters, NY
Bronxville, NYBrookhaven, NYCanton, MI
Channahon, ILCharlottesville, VAChicago Heights, IL
Chicago Ridge, ILChicago, ILCicero, IL
Cleveland, OHCoal City, ILCollege Point, NY
Conneaut, OHCorona, NYCrete, IL
Detroit, MIDewitt, MIDimondale, MI
Dolton, ILDorset, OHEagle, MI
East Claridon, OHEast Elmhurst, NYEast Greenville, PA
East Lansing, MIEast Texas, PAEastchester, NY
Easton, PAEaton Rapids, MIEcorse, MI
Edmore, MIElkins Park, PAElmhurst, NY
Elmwood Park, ILElyria, OHEmmaus, PA
Evergreen Park, ILFerndale, MIFlushing, NY
Forest Hills, NYFort Eustis, VAFresh Meadows, NY
Glen Burnie, MDGrand Rapids, MIGreenlawn, NY
Gwynn Oak, MDHamtramck, MIHarper Woods, MI
Harrison Township, MIHastings On hudson, NYHighland Park, MI
Holbrook, NYHoltsville, NYHunt Valley, MD
Huntington Station, NYHuntington, NYIslandia, NY
Jackson Heights, NYKalamazoo, MILakewood, OH
Landisburg, PALawn, PALeasburg, NC
Lebanon, PALemoyne, PALewistown, PA
Lexington, NCLiberty, NCLinwood, NC
Little Neck, NYLittleton, COLiverpool, PA
Loysville, PALykens, PAMacomb, MI
Marysville, MIMaspeth, NYMcalisterville, PA
Melville, NYMemphis, MIMemphis, TN
Mentor, OHMiddle Village, NYMiddlefield, OH
Montville, OH
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