CULT: question - weed barrier fabric

I am experimenting this year with some weed barrier fabric under potted
irises.

I don't have any experience with this stuff - does it have to be covered
with mulch of some sort?

My front yard is full of "wild" daffodils that make very messy
copperhead haven after bloom while I wait for the foliage to die down so
I can start mowing it as "lawn" again.  Full of weeds and blooming
grasses - unsightly mess.

So I'm experimenting with one section of it - covered it with the
landscape fabric, edged it with 2x4's, put about an inch layer of pine
shavings on top, then set the pots on it.  Plan is to leave the pots
there till this fall, then take up the 2x4s & fabric, spread the
shavings on the ground, hopefully not have much in the way of
grass/weeds next spring, then re-use the area for pots after the daffs
die back again next year.

Timing works well for holding potted rhizomes for our summer sale as
well as seedlings that didn't make it into the ground yet.

--
Linda Mann east Tennessee USA zone 7/8
East Tennessee Iris Society <http://www.korrnet.org/etis>
American Iris Society web site <http://www.irises.org>
talk archives: <http://www.hort.net/lists/iris-talk/>
photos archives: <http://www.hort.net/lists/iris-photos/>
online R&I <http://www.irisregister.com>

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