Forsythia x intermedia 'Tremonia'
Plant Expert:
Michael Dirr Forsythia x intermedia 'Tremonia'
Michael Dirr
Forsythia x intermedia 'Tremonia'
Forsythia x intermedia 'Tremonia' (click for large image)
Tremonia Border Forsythia 		Common Names:
  • Tremonia Border Forsythia
 
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Sun/Water Requirements:

  Requires full sun.
Moderate climate.

Climate / Hardiness Zones:

  Zone 5 to Zone 9

Growth:

  Range: Grows from 5' to 10'.
Dirr says: "upright-spreading growth habit; the plants I have seen were not particularly vigorous"

Flowers:

  Color(s): Yellow
Season(s): Spring
 

Foliage:

  Deciduous
Color: Leaves are dark green and green in the summer and yellow and green in the fall.
Dirr says: "a rather curious form with deeply cut leaves"  

Fruit:

  Color: Black
Season(s): Fall
 

Landscape Value:

  Can be used as a grouping plant.

Other:

  Is Resistant to Disease
Is Resistant to Insects
Is Urban Tolerant
 
Forsythia x intermedia 'Tremonia' 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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