On Sep 13, 3:54 pm, Lar wrote:
Glenna Rose wrote:
Jimmy, the grass didn't "poke through the fabric;" dirt has settled in the
cracks (on top of the fabric) and seeds have taken root. Two of the
reasons why the grass has not grown from under the fabric: no sun to
encourage germination, not able to grow through the fabric (providing you
didn't damage the fabric when laying the bricks).

It looks to be nut sedge that would grow through any plastic...it even
comes through hard plastic kiddie pools and the toughened liners of
above ground swimming pools if left in one place for the summer.

The "young ones" are different seeds that were ready to start when you
sprayed; Roundup does not affect anything that has not sprouted; it acts
on the foliage.

Nut sedge will be coming up from the "nuts" under ground, probably not
from seed.

Cement would have helped quite a bit but not eliminated the issue since
cracks soon start happening and soon the weeds are there to greet you.

This is a time to use your tea kettle. Pour boiling water wherever you
see the grass appear.

the boiling water will only kill the exposed vegetation and not really
do anything for the under ground part of the plant, especially under
patio pavers.

Another solution is vinegar.

There are other things also but are either toxic and/or harmful to the
soil; some would have worked if applied prior to the fabric and only for a
year.

Boiling water pretty much sterilizes the soil killing any beneficial
organism in it...vinegar probably is a close second to the damage along
with possibly changing the PH of the soil itself..

Lar

Yesterday, I tried to remove one of the bricks, and sure enough, the
weed actually "poked" thru the landscape fabric from the under side!

Sounds like it is not going to be easy to solve.

However, it I continous to attack with ROUNDUP regularly, will it be
eventually eliminated?

Please share your comments,


JIMMY