How to patch a dead lawn area?

[earthperp]

Hi everyone, I'm just trying to find the best course of action to patch a dead area of our lawn. 

I was previously trying to hack out some substantial tree roots from a jacaranda in this area, and probably took it down 2-3inches. I then tried to take a few donor patches from elsewhere and chuck some dirt over it and call it a day. This has obviously failed spectacularly!

1. How far down should I ideally remove the tree roots? I read that a few inches is fine. 

2. After cleaning this area back out, do I buy some garden soil to put in the area?

3. Purchase new sod / grass tiles (still not sure of the species) and place it on the area?

I've attached images of the healthy grass, and then also the terrible area. It looks like Kikuyu

Thanks in advance!

Health grass dead area

[EricL]

Hello @earthperp 

Thanks for sharing your question about patching your lawn.

It looks like the patch struggled because of both the tree roots and the way the donor turf was laid. Here’s a recommended approach to get the best possible results:

First, with the tree roots, removing just a couple of inches usually isn’t enough if they are still close to the surface. The general idea is to get them down far enough so the new soil and turf can sit on top without drying out quickly or competing too heavily with the tree. Aim to cut back roots at least four to six inches below the surface where possible, while being mindful not to severely stress the tree by removing major structural roots.

Second, once you’ve cleared the area, add a layer of fresh topsoil or lawn mix rather than plain garden soil. Lawn mix usually contains a blend that drains well and encourages turf establishment. Rake it in evenly so that it is level with the surrounding lawn.

Finally, laying new sod or grass tiles is the most reliable option. Make sure the turf species matches your existing lawn for a seamless look. Lay the turf pieces tightly together, press them down, and water thoroughly. Keep the area moist for the first couple of weeks until it starts rooting in. If you are unsure about the grass type, take a small sample from your yard to the store so they can match it for you. 

Here are some handy guides that will help:

• How to repair a lawn by @Adam_W 
   
• How to detect lawn problems by @Adam_W 

If you need further assistance, please let us know.

Eric