Pyracantha koidzumii
Plant Expert:
Michael Dirr Pyracantha koidzumii
Michael Dirr
Pyracantha koidzumii
Pyracantha koidzumii (click for large image)
Formosa Firethorn
Common Names:
  • Formosa Firethorn
More Images:
Formosa Firethorn
 
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Origin:

  Taiwan  

Sun/Water Requirements:

  Requires full sun.
Moderate to dry conditions.
Dirr says: "Excellent choice for hot, dry areas; plants on the Georgia campus have survived numerous droughts during the 1980's and fruited heavily."

Climate / Hardiness Zones:

  Zone 7 to Zone 10

Dirr says: "Zone 8 to 10, this species is not reliably hardy in Zone 7; severely injured and in exposed locations killed to ground during 1981-82 winter in Athens, GA when temperatures dropped to 0°F, same occurrence in 1983-84 at -3°F; some plants killed, others developed new shoots from base."

Growth:

  Range: Grows from 10' to 20'.
Dirr says: "8 to 12' (20') high, 8 to 12' (20') wide. Large multi-stemmed, stiff, upright-branched shrub that becomes unkempt with time unless properly pruned; like P. coccinea this is a rank grower and rather unruly. Prune selectively; there is no one best time to remove branches. Many cultivars available."

Flowers:

  Color(s): White
Season(s): Spring

Dirr says: "1/4" diameter, malodorous, produced in small racemes in mid-April - Early May (Athens, GA); an entire plant in flower is quite attractive."  

Foliage:

  Broadleaf Evergreen
Semi-Evergreen
Color: Leaves are dark green in the summer.
Dirr says: "May start leafing out as early as late February in Athens, GA; lustrous; foliage may discolor in colder areas of South."  

Fruit:

  Color: Red
Season(s): Late Summer, Early Fall
Dirr says: "globose, 1/4" diameter, red pome that matures in September - October and persists through the ensuing winter; the entire shrub is a great mass of red; birds apparently leave these until they are desparately hungry."  

Landscape Value:

  Can be used as a foundation plant.
Can be used as a hedge plant.
Can be used as a grouping plant.

Dirr says: "Excellent for fruit effect and widely used for every conceivable landscape purpose; single specimen, foundation plantings, hedges (a mistake), screens, masses, espaliers; requires a great deal amount of maintenance to keep it looking nice; where space permits it is worth using; the most widely used species in the Southeast."

Other:

  Is Resistant to Drought
Is Heat Tolerant
 

Other Pyracantha koidzumii References & Articles:
Pyracantha koidzumii is hardy in these areas:
Alameda, CAAlamo, CAAmerican Canyon, CA
Angwin, CAAntioch, CAArtesia, CA
Avalon, CAAzusa, CABaldwin Park, CA
Baltimore, MDBayside, NYBell Gardens, CA
Bell, CABellflower, CABeverly Hills, CA
Bronx, NYBrooklyn, NYBrownsville, TX
Cerritos, CAChino Hills, CAChino, CA
Chula Vista, CACity Of industry, CAClaremont, CA
College Point, NYCorona, CACorona, NY
Danville, CADescanso, CADulzura, CA
East Elmhurst, NYEl Cerrito, CAElmhurst, NY
Essex, CAFairfield, CAFawnskin, CA
Florence, SCFlushing, NYFontana, CA
Forest Falls, CAForest Hills, NYFort Eustis, VA
Fort Lauderdale, FLFountain Valley, CAFremont, CA
Fresh Meadows, NYGlen Burnie, MDGlendora, CA
Granada Hills, CAGuasti, CAGwynn Oak, MD
Hacienda Heights, CAHawthorne, CAHermosa Beach, CA
Hialeah, FLHollywood, FLHunt Valley, MD
Huntington Park, CAIrvine, CAJackson Heights, NY
La Puente, CALeasburg, NCLexington, NC
Liberty, NCLinwood, NCLittle Neck, NY
Long Beach, CALos Angeles, CALudlow, CA
Maspeth, NYMercedes, TXMiddle Village, NY
Mission Hills, CAMission, TXModesto, CA
Moreno Valley, CANewport News, VANorth Hills, CA
Northridge, CANorwalk, CANottingham, MD
Oakland Gardens, NYOlmito, TXOxnard, CA
Pacoima, CAPalmdale, CAParkville, MD
Pearblossom, CAPenitas, TXPharr, TX
Phelan, CAPikesville, MDPinon Hills, CA
Port Isabel, TXProgreso, TXRancho Cucamonga, CA
Rancho Santa margarita, CARandsburg, CARed Mountain, CA
Redlands, CA
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