Poncirus trifoliata
Plant Expert:
Michael Dirr Poncirus trifoliata
Michael Dirr
Poncirus trifoliata
Poncirus trifoliata (click for large image)
Bitter-orange, Hardy-orange, Trifoliate-orange
Common Names:
  • Bitter-orange
  • Hardy-orange
  • Trifoliate-orange
More Images:
Bitter-orange, Hardy-orange, Trifoliate-orange Bitter-orange, Hardy-orange, Trifoliate-orange
Bitter-orange, Hardy-orange, Trifoliate-orange Bitter-orange, Hardy-orange, Trifoliate-orange
Bitter-orange, Hardy-orange, Trifoliate-orange Bitter-orange, Hardy-orange, Trifoliate-orange
 
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Origin:

  Northern China, Korea  

Sun/Water Requirements:

  Requires full sun.
Moderate to dry conditions.

Climate / Hardiness Zones:

  Zone 5 to Zone 9

Growth:

  Range: Grows from 15' to 30'.

Flowers:

  Color(s): White

Dirr says: "in spite of what the literature states I cannot sense the sweet odor"  

Foliage:

  Deciduous
Color: Leaves are dark green in the summer and yellow and green in the fall.
Dirr says: "This plant has tremendous late fall and winter character with interesting green stems and spines"  

Fruit:

  Color: Yellow
 

Landscape Value:

  Can be used as an ornamental plant.
Can be used as a specimen plant.
Can be used as a hedge plant.
Can be used as a grouping plant.

Dirr says: "More of a novelty plant than anything else in the North, used in the south for hedging because of its dense growth and thorny character; no sane person would attempt to penetrate this hedge!"

Other:

  Is Resistant to Disease
Is Resistant to Drought
Is Resistant to Insects
 
Poncirus trifoliata is hardy in these areas:
Alameda, CAAlamo, CAAlsip, IL
American Canyon, CAAngwin, CAAntioch, CA
Baltimore, MDBayside, NYBronx, NY
Brooklyn, NYBrownsville, TXCanton, MI
Chicago, ILCicero, ILCollege Point, NY
Conneaut, OHCorona, NYDanville, CA
Detroit, MIDorset, OHEast Claridon, OH
East Elmhurst, NYEcorse, MIElmhurst, NY
Elmwood Park, ILElyria, OHEssex, CA
Evergreen Park, ILFawnskin, CAFerndale, MI
Florence, SCFlushing, NYFontana, CA
Forest Falls, CAForest Hills, NYFort Eustis, VA
Fresh Meadows, NYGlen Burnie, MDGwynn Oak, MD
Harper Woods, MIHarrison Township, MIHunt Valley, MD
Jackson Heights, NYLeasburg, NCLexington, NC
Liberty, NCLinwood, NCLittle Neck, NY
Ludlow, CAMacomb, MIMarysville, MI
Maspeth, NYMemphis, MIMercedes, TX
Middle Village, NYMission, TXModesto, CA
Moreno Valley, CAMorgantown, WVMount Clemens, MI
New Baltimore, MINew Haven, MINew York, NY
Newport News, VANorth Ridgeville, OHNorth Street, MI
Oakland Gardens, NYOlmito, TXPenitas, TX
Pharr, TXPhelan, CAPhiladelphia, PA
Pikesville, MDPinon Hills, CAPort Isabel, TX
Progreso, TXRedlands, CARego Park, NY
Rialto, CARidgewood, NYRimforest, CA
Riverdale, ILSaratoga, CASoquel, CA
Sparrows Point, MDStaten Island, NYTaylor, MI
Temperance, MITemple City, CATowson, MD
Trenton, MITres Pinos, CAUpland, CA
Virginia Beach, VAWalnut, CAWatsonville, CA
Wayne, MIWestland, MIWhitestone, NY
Whitmore Lake, MI
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