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Lawn Care 101: Tips for Growing Grass

When grass is coming out of dormancy in the spring, the tendency is to feed heavily creating an instant green lawn.  However, heavy feeding creates excess top growth at the expense of the root system. 

Consequently, although you mow often to keep the lawn in shape, the grass cannot put energy into the roots so that it can survive the heat of the summer.  When choosing a fertilizer this spring, look for a slow release fertilizer. 

Slow release fertilizers provide a controlled release of the nitrogen nutrients so the grass does not get that sudden influx of high nitrogen. A slow release nitrogen fertilizer yields benefits to the grass plant and prevents the release of excess nitrogen that can contaminate the area watershed.

With grass growing at a healthy, rather than excessive rate, you can concentrate on correct mowing of the lawn.  Before you start mowing make sure that your mower has clean, sharp blades.  Cut the grass blades to 4"-6".  

This depth will allow the roots to stay cool and moist by creating a barrier between airborne seeds and the ground so weeds cannot germinate.  If you plan to use a weed and feed fertilizer, look for one that offers a pre-emergent and post emergent herbicide. 

Applying a pre and post emergent herbicide before the grass is too high will kill any existing weeds, including crabgrass, while they are still small.  Never cut more than one third of the blade each time, so for overlong grass, mow once on a high setting, then a second time to the correct length. 

Root systems need water to sustain the lawn, so water regularly but deeply.  Lawns need 1" of water per week.  This may come as rain, but often will need to be provided by the homeowner. To calibrate overhead watering systems, place a container within range of the sprinkler and time how long it takes to fill to 1". 


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