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Burning of prairies

There have been a lot of questions about burn frequency, etc.  I'm not an
expert in this, so if I miss something (or get it totally wrong), feel
free to jump in.

   Burning is an important step in prairie development.  It helps give
   warm-season grasses an edge over cool-season plants that tend to
   be undesireable in a prairie environment.

   Studies show that prairies thrive with regular, controlled burnings
   every 2 to 3 years.

   Ideally, the prairie should be burned sometime in the early spring.
   If there are no early-blooming flowers, it can be burned as late as
   mid-spring.  If these aren't possible, fall will work so long as
   the prairie species are dormant but the non-natives are still active.
   This alternative will harm over-wintering insects, however.

Hope this helps!

Chris
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