Establishment
Turfgrass can be established a variety of ways. The method you choose will be determined by the situation your lawn is in. Do you have a new construction? An existing lawn that is thin and rough? A fair lawn that is just a little thin? Depending on what condition your lawn is in will determine where to start. Let's say you have a lawn that is in fair condition but needs thickened up. An easy way to do this is to Aerate and over seed. An aerator is a machine that will poke a hole in the ground (thousands of them actually) and remove a core of soil and leave it laying on the surface. These are called core aerators. Some aerators will simply push a spike into the ground creating a hole, this type is not as good. To start with, mow your grass as low as you can safely, don't throw rocks and dig dirt with the mower, but get it down to about 1" high.This will stunt the grass and slow it's growth allowing the new grass that you will seed to get started with limited competition from the existing grass. After mowing take an aerator, rent one, buy one or borrow one, and go over the entire lawn at least twice. Depending on the model you use, the aerator will poke holes every 2 to 8 inches apart. I like to be able to look down at the lawn at any point and not see spots that don't have holes larger than 6". If you have a spot larger than 6" without holes in it, you won't have very much grass come up in that spot, so go over the lawn as many times as it takes to be sure you have holes everywhere. Once your done aerating, spread your seed. The amount of seed you use is important. If you don't use enough you won't get the desired results. Professionally, we use 350# per acre for lawns. Divided out per thousand square feet that is 8# per thousand square feet. This brings up an important point, measure the square footage of your lawn accurately and write it down. Every thing you do in lawn care will ask for how large the lawn is. Spread the seed with a spreader of any type, do not use your hand and just throw it around, you won't get even coverage. Spread the seed using half of the required amount spreading it in one direction, use the other half spreading the opposite direction creating a cross hatch pattern on the lawn. This way you are assured of getting even coverage. After spreading the seed take a drag of any type, a piece of chain link fence, a board with a rope tied to it, or what ever you can drag behind your mower. Drag the lawn, this will push and drag seed into the holes you created and break up the little plugs of soil that the aerator left on the ground, it will cover up most of the seed giving much better germination and a thicker lawn. After dragging, spread a starter fertilizer, this can be done first if you want, it really doesn't matter. A starter fertilizer has a higher middle number than first and last numbers. (More Phosphate) For complete explanation on what the numbers mean on fertilizer bags, how they affect grass and what micro-nutrients grass also needs, refer to our Lawn Care Manual. You will need to put down 8 pounds per thousand square feet of a 6-12-12 or 4 pounds per K of a 6-24-24. This will give the ground the nutrients needed to germinate and start a turf lawn, thus the name "starter fertilizer". After about a month the new grass will start to yellow off some or maybe turn pale green, this is showing you that it is time to fertilize again. Apply 6# per K of 15-15-15 this will provide the nitrogen for green and growth and phosphate and potash for root growth and overall vigor. After the grass is about 3 weeks old you should be able to start mowing. CUT IT HIGH!!! Refer to the section on mowing for more. Fertilizing will also need to be done on a regular schedule. Refer to Fertilizing for a complete schedule. If you have a new home and this is the first lawn a few things are different. Mainly you will have to do clean up and get the proper grade before working on seeding. Once this is done you will have to till up the ground to make a soft seed bed. After tilling fertilize, and seed just as described above using the same amount of seed. After this you will have to cover the entire lawn with straw. Shake out straw to cover approximately 50% of the soil from view. After done you should be able to look down and still see about half of the soil showing through the straw, no more. This equates to about 100 bales per acre. After your done strawing it's time to start watering. Soak the lawn until runoff the first watering, followed by daily waterings of sufficient length to keep the soil wet. If it dries out, the seed won't germinate.
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