Return to the Organic Lawn Care Forum | Post a Follow-Up

replace weeds with lawn

Posted by carolinakate NC 7b (My Page) on
Sat, Sep 8, 12 at 13:06

My smallish back yard lawn is full of many kinds of weeds, and I'd like to make it pretty.

I have seen mention of an organic lawn FAQ, but can't find it.

Here's what I'm thinking:
1. till about 8 inches deep and rake off any plant material
2. leave for a week so earthworms will go back down
3. use a flame weeder to kill any germinating weeds
4. sow cool season grass mix and spread alfalfa pellets
5. keep moist, etc.

Do the first 3 steps sound right? Will the neighborhood rabbits eat all the alfalfa before it can be used by the grass?

I did spread limestone 2 years ago. I also have plenty of earthworms.


Follow-Up Postings:

RE: replace weeds with lawn

Removing any "plant material" removes the organic matter the soil needs and that will feed any earthworms you do have. How much orgainc matter is in the soil now? 6 to 8 percent OM is what your goal should be.
Tilling the soil can bring other "weed" seeds to the surface where they can germinate and grow. People often will till soil a couple of times a week or two apart to disrupt the growth patterns of these "weeds".
I would work the Alfalfa pellets into the soil before seeding rather than while or after seeding. The grass seed you do spread should be slightly covered with soil after spreading.
The seed bed will need to be kept moist until those seeds germinate and are up and growing quite well.
Why did you spread that limestone 2 years ago? What type of limestone was spread? What is your soils pH today? Did that limestone do what is was supposed to do?

RE: replace weeds with lawn

Thanks, Kimmsr.
So do you think I should just till and leave all the weeds in it? I do leave the clippings on the lawn when I mow, so there is some OM in the soil from that. I suppose I have to send some soil in for a test.

I am in an area that has very acidic clay-ey soils with poor drainage. When I overseeded my front lawn two years ago, I applied powdered limestone - the cheap kind in a bag from Lowe's - at a rate that someone told me (don't remember how much). I had some left over, so I spread it in the back yard in anticipation of rejuvenating the lawn there some day.

RE: replace weeds with lawn

Most turf grasses grow best in soils with a soil pH between 6.0 and 7.0 and adding enough lime is the fastest way to get that pH up there if it is needed. A bag or two seldom will do anything, especially if you need 3 pounds per square foot. Start with a good, reliable soil test from your North Carolina State University Cooperative Extension Service which can guide you in how much limestone you might need.
Perhaps these simple soil tests will be of some help, also.
1) Structure. From that soil sample put enough of the rest to make a 4 inch level in a clear 1 quart jar, with a tight fitting lid. Fill that jar with water and replace the lid, tightly. Shake the jar vigorously and then let it stand for 24 hours. Your soil will settle out according to soil particle size and weight. A good loam will have about 1-3/4 inch (about 45%) of sand on the bottom. about 1 inch (about 25%) of silt next, about 1 inch (25%) of clay above that, and about 1/4 inch (about 5%) of organic matter on the top.

2) Drainage. Dig a hole 1 foot square and 1 foot deep and fill that with water. After that water drains away refill the hole with more water and time how long it takes that to drain away. Anything less than 2 hours and your soil drains� too quickly and needs more organic matter to slow that drainage down. Anything over 6 hours and the soil drains too slowly and needs lots of organic matter to speed it up.

3) Tilth. Take a handful of your slightly damp soil and squeeze it tightly. When the pressure is released the soil should hold together in that clump, but when poked with a finger that clump should fall apart.

4) Smell. What does your soil smell like? A pleasant, rich earthy odor? Putrid, offensive, repugnant odor? The more organic matter in your soil the more active the soil bacteria will be and the nicer your soil will smell.

5) Life. How many earthworms per shovel full were there? 5 or more indicates a pretty healthy soil. Fewer than 5, according to the Natural Resources Conservation Service, indicates a soil that is not healthy.

Here is a link that might be useful: NCSU on liming

RE: replace weeds with lawn


Thank you so much for taking the time to help me with my lawn! The file you linked me to is also very informative. I will try to get the soil test in before the weekend and go from there.

Thanks again.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Organic Lawn Care Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here