Vitex negundo
Plant Expert:
Michael Dirr Vitex negundo
Michael Dirr
Vitex negundo
Vitex negundo (click for large image)
Chastetree, Vitex
Common Names:
  • Chastetree
  • Vitex
 
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Origin:

  Madagascar, Philippines, eastern and southeastern Asia  

Sun/Water Requirements:

  Requires full sun.
Moderate climate.
Dirr says: "well-drained soils definitely aids in reducing winter injury; if pruning is necessary, cut the plants to within 6 to 12" of the ground in spring or back to live wood on old plants."

Climate / Hardiness Zones:

  Zone 5 to Zone 8

Dirr says: "Zone 6, often listed as 5 but shakily so, does well in southern states into Zone 8. Prefers hot weather"

Growth:

  Range: Grows from 15' to 30'.
Dirr says: "size difficult to predict in the North since plants are often frozen to the ground; the height in one growing season might be 3 to 5' but if no damage is done, over the years the plant may grow 10 to 15'; plants at the J.C. Raulston Arboretum, Raleigh, NC were over 20' high. Not a bad looking plant in leaf; develops a loosely branched, airy, open outline, vase-shaped habit with cloud-like airy foliage canopy, can become ratty with time, requires pruning."

Flowers:

  Color(s): Blue, Purple
Season(s): Late Summer

Dirr says: "Small, blue-purple, lilac or lavender, in loose clusters forming slender spikes collected into 5 to 8" panicles; effective in July - August (early to mid June in Athens, GA); flowers on new growth of the season. Nice late season flower effect. Will flower recurrently during late summer as long as new growth develops. Not a bad idea to remove spent flowers since this may result in a late season flush of growth."  

Foliage:

  Deciduous
Color: Leaves are green and gray in the summer and green and brown in the fall.
Dirr says: "Interesting foliage texture. Nothing to speak of in the way of fall color. Leafs out late."  

Fruit:

  Color: Black
Season(s): Late Summer
Dirr says: "small drupe of no consequence, persists, if removed new growth often ensues and additional flowers are produced."  

Landscape Value:

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

Dirr says: "Possibly a plant for the shrub border; should almost be treated as an herbaceous perennial in the North; large shrub or small tree in South and West."

Other:

  Attracts Butterflies
Is Heat Tolerant
 

Other Vitex negundo References & Articles:
Vitex negundo is hardy in these areas:
Alsip, ILBaltimore, MDBayside, NY
Bronx, NYBrooklyn, NYBrownsville, TX
Canton, MIChicago, ILCicero, IL
College Point, NYConneaut, OHCorona, NY
Detroit, MIDorset, OHEast Claridon, OH
East Elmhurst, NYEast Greenville, PAEast Texas, PA
Easton, PAEcorse, MIElmhurst, NY
Elmwood Park, ILElyria, OHEmmaus, PA
Evergreen Park, ILFerndale, MIFlorence, SC
Flushing, NYForest Hills, NYFort Eustis, VA
Fresh Meadows, NYGlen Burnie, MDGwynn Oak, MD
Harper Woods, MIHarrison Township, MIHighland Park, MI
Hunt Valley, MDJackson Heights, NYLeasburg, NC
Lexington, NCLiberty, NCLinwood, NC
Little Neck, NYMacomb, MIMarysville, MI
Maspeth, NYMemphis, MIMiddle Village, NY
Morgantown, WVMount Clemens, MINew Baltimore, MI
New Haven, MINew York, NYNewport News, VA
North Ridgeville, OHNorth Street, MINottingham, MD
Oakland Gardens, NYParkville, MDPhiladelphia, PA
Pikesville, MDRego Park, NYRidgewood, NY
Riverdale, ILRosedale, MDSparrows Point, MD
Staten Island, NYTaylor, MITemperance, MI
Towson, MDTrenton, MIVirginia Beach, VA
Wayne, MIWestland, MIWhitestone, NY
Whitmore Lake, MIWoodside, NY
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