Monday, May 17, 2010

Poa annua

Have you noticed patches of turf in the fairways starting to have a white or tan look to it.  If you have this is Poa annua or Annual Bluegrass that is starting to seed or to grow it's "inflorescence".
In the foreground you can see the change in color.


If you were to look at it from the side it looks like a small tree sticking up.


  This seed growth can take place throughout the summer but generally speaking late May and early June is when you see the large volumes of seed growth.  Typically, this marks the end of spring root growth as the plant is putting it's energy into seed production and top growth. 

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