Allotment Gardening Advice Help Chat

Chatting => Equipment Shed => Topic started by: Moonshine132435 on April 16, 2012, 15:22

Title: Weed matting versus tarpaulin
Post by: Moonshine132435 on April 16, 2012, 15:22
After spending a while on my council's waiting list I've finally lucked into a plot at our local allotment; half of me is mad exited and planning away, the other half is a little daunted by the scale of what I'm taking on.

The plot is largely grass and dandilions, with a small patch of brambles. I chopped these down last weekend; my plan is to strim the whole plot down, clear the vegetation for composting, nuke the whole thing with some Roundup and then cover it up while I work out what's next.

Carpet is frowned on at my allotments (and it would take an aweful lot of it in any case) so I'm debating whether to go with some cheap blue tarpaulin which has the benfit of having holes at the edges so I can easily secure it with tent pegs, versus  the more common weed control matting I see a lot of other people use. The weed matting is permeable, but does that really make a difference when I'm just trying to discourage any weeds growing before I start digging?
Title: Re: Weed matting versus tarpaulin
Post by: smud6ie on April 16, 2012, 16:16
If you strim off the growth you will have to wait for it to grow again to use the weed killer.
Those cheap polytarps let too much light through to kill off weeds,or the ones I've seen do.
smud6ie
Title: Re: Weed matting versus tarpaulin
Post by: Yorkie on April 16, 2012, 18:40
Tarpaulins have their uses but they don't let air and water through.  This makes the soil sour over time, so isn't recommended.  It is also slippery when wet.

Woven weed suppressant of decent quality doesn't let light through, but is healthier for the soil and not slippery.
Title: Re: Weed matting versus tarpaulin
Post by: Ice on April 16, 2012, 18:55
I would use the roundup and strim afterwards when it's dying back.  You need actively growing leaves for it to be effective.
Title: Re: Weed matting versus tarpaulin
Post by: sunshineband on April 16, 2012, 19:02
Cheap blue tarp lets quite a lot of light through and so plants grow very happily beneath it  :ohmy:
Title: Re: Weed matting versus tarpaulin
Post by: teamspotty on April 16, 2012, 21:08
Weedkiller then tarp it. I presume you mean the very large ones from B&Q, double them up, it won't kill everything but it will help 90%.
Title: Re: Weed matting versus tarpaulin
Post by: Ice on April 16, 2012, 21:25
Weedkiller then tarp it. I presume you mean the very large ones from B&Q, double then up, it won't kill everything but it will help 90%.
I refer you to replies number 2 & 4 above. ^^ ;)
Title: Re: Weed matting versus tarpaulin
Post by: Trillium on April 17, 2012, 04:56
Much as I hate to use it but Roundup does have times it's a huge backsaver.

As Ice says, strim, rake, then spray your weedy area. Once it dries, if you're keen to cover it, then spread opened cardboard boxes on top and weight them down. spread so that no gaps show and this will really put the death sentence on weeds. The cardboard will eventually compost down so you'll have nothing to lift.
Title: Re: Weed matting versus tarpaulin
Post by: teamspotty on April 17, 2012, 15:42
Weedkiller then tarp it. I presume you mean the very large ones from B&Q, double then up, it won't kill everything but it will help 90%.
I refer you to replies number 2 & 4 above. ^^ ;)

Doubling them up will reduce the amount of light through and will kill 90% of the weeds.....

The important term here is *doubling up* - i.e. two layers (not a single layer which won't kill ANY weeds)....
Title: Re: Weed matting versus tarpaulin
Post by: smud6ie on April 17, 2012, 16:39


As Ice says, strim, rake, then spray your weedy area.
Do they have Specsavers in Canada or any chance of a bottle of what you were on last night? ;) :lol: :lol: :lol:
smud6ie
 Quote Ice  "I would use the roundup and strim afterwards when it's dying back.  You need actively growing leaves for it to be effective"
Title: Re: Weed matting versus tarpaulin
Post by: Moonshine132435 on April 17, 2012, 17:42
Thanks for all the answers guys; I think I'm going to stim it back a bit, rake it then nuke it. I like the cardboard idea, seems to be killing two birds with one stone.
Title: Re: Weed matting versus tarpaulin
Post by: Yorkie on April 17, 2012, 18:01
There is no point in strimming before applying the weedkiller, as others have said.  You need the plant to be actively growing - and if you strim off the foliage first then it can't absorb the chemicals.

Nuke, wait a week or so for the chemicals to start to be absorbed, then strim, then cover.
Title: Re: Weed matting versus tarpaulin
Post by: ulsterfairy on April 17, 2012, 20:18
Agree with the nuke it then wait before strimming comments!! 

Even with doubling the cheap tarp it didnt deter bind weed, docks or brambles on our plot (Which we strimmed before covering minus roundup), it did all the "weaker" weeds!! 

The bit we nuked end of growing season last year and didnt cover is now very manageable bindweed an all, any new weed growth is getting hoe'd apart from bindweed which  wiil be havin a visit from weed killer again!!

Plus the tarp does get very slippy especially doubled over in my experience (Yes I have landed on me behind!!)  ::)
Title: Re: Weed matting versus tarpaulin
Post by: teamspotty on April 17, 2012, 20:26
Agree with the nuke it then wait before strimming comments!! 

Even with doubling the cheap tarp it didnt deter bind weed, docks or brambles on our plot (Which we strimmed before covering minus roundup), it did all the "weaker" weeds!! 

The bit we nuked end of growing season last year and didnt cover is now very manageable bindweed an all, any new weed growth is getting hoe'd apart from bindweed which  wiil be havin a visit from weed killer again!!

Plus the tarp does get very slippy especially doubled over in my experience (Yes I have landed on me behind!!)  ::)

yep only 90% of weeds, bramble will be too hardy and will force its way out, can get slippy (I hope you didn't injure yourself), but it does help and is cheap... (I think the huge blue ones from B&Q are £16)...
Title: Re: Weed matting versus tarpaulin
Post by: ulsterfairy on April 17, 2012, 20:46
Teamspotty I have plenty of padding so no  :happy:

We do still have a bit covered in tarp until we get time to do that bit!!
Title: Re: Weed matting versus tarpaulin
Post by: Moonshine132435 on April 18, 2012, 10:20
Got it: nuke, strim, rake, cover!

I've got a full plot so I'll dial down my plans a little this season and cover half with weed matting and cardboard for next year, the other half I'll use the tarps I've already got to block out light until I have decided how to move it fowards this year.

Seperate but related question: Roundup seems to be like the napalm of weedkillers; if I spray it can I use the cuttings for compost, or would it be wiser to remove them completely?
Title: Re: Weed matting versus tarpaulin
Post by: Scotch Thistle on April 18, 2012, 12:38
Got it: nuke, strim, rake, cover!

I've got a full plot so I'll dial down my plans a little this season and cover half with weed matting and cardboard for next year, the other half I'll use the tarps I've already got to block out light until I have decided how to move it fowards this year.

Seperate but related question: Roundup seems to be like the napalm of weedkillers; if I spray it can I use the cuttings for compost, or would it be wiser to remove them completely?

I normally remove perennial roots then dig everything else in after week killing


Title: Re: Weed matting versus tarpaulin
Post by: Yorkie on April 18, 2012, 17:35
Seperate but related question: Roundup seems to be like the napalm of weedkillers; if I spray it can I use the cuttings for compost, or would it be wiser to remove them completely?

Roundup is the most well-known brand name for glyphosate based weedkiller.  You can get others which are cheaper.

I don't add my weedkillered plants to my compost bin.