Stormwater Ponds: Common Threats to Plants

 

Native wetland plants can survive conditions that would kill most species.  However they must be protected from:

  • Long term excessively high water levels
  • Humans wielding herbicides and weedwackers
  • Non-native invasive species

 

In addition, newly installed plants must be protected from:

  • Extremely dry soil (for about 6 weeks after installation)
  • Cattails (until full coverage achieved)
  • Non-migratory Canada Geese (until well established)

 

 

 Helianthus angustifolius

Excessively high water levels - such as develop when the pond's drawdown orifice becomes clogged - will kill plants even when they are mature and well established