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Autumn Olive

Elaeagnus umbellate

 

Identification

Large shrub/small tree up to 20 feet tall. The alternately arranged leaves are dark green with a silver underside. Twigs are grey/green to brown with fine hairs.  Small, inconspicuous yellow flowers give rise to dark red fruits resembling tiny olives.  The fruit is extremely bitter and eaten by wildlife only in winter when other food is scarce.

 

Origin

East Asia

 

Habitat

Grows in a variety of conditions. It can tolerate almost complete shade when mature, and is drought tolerant.  When in full sun, it produces huge amounts of viable seed which is spread in winter by birds.

 

Ecological Threat

Autumn olive can adapt to a wide variety of conditions and has an extremely fast growth rate when compared to native shrubs. It can quickly invade sparse woodlands, grassland, and roadsides and crowd out all other native plant life. It also has nitrogen-fixing nodules in its root system, which allows it to invade areas with poor soil. It is also a pest in disturbed areas.

 

Recommended Native Alternatives

  • Spicebush (Lindera benzoin)

  • Arrowood viburnum (Viburnum dentatum)

  • Silky dogwood (Cornus amomum)

 

 

 

 

 

 

 

 


These pages are designed to give the layperson a general overview of non-native invasive plants commonly found in the upper Hiwassee River watershed. For more comprehensive and technical information about a particular species, visit one of the web sites from our Links page.

 

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