View Full Version : roundup for bed prep?

05-03-2004, 07:32 AM
have an install to do this weekend and was wondering how long should i wait to start install after laying out beds and spraying with roundup? (I am licensed) with all the rain i am concerned about when i can get out there to mark out beds and have enough time in between for install or should i just use a sod cutter?about 500 sq of bed area.thanks for any info!!

D Felix
05-03-2004, 09:17 AM
We've had luck with spraying on one day, then coming back and installing through the grass the next. Just make sure the grass is cut before you spray, and put a heavy coating of mulch down.

05-03-2004, 09:51 AM
d flex
so i could just spray my pattern then should i till the ground? it will be a raised bed ,kidney shaped to hide sewer drain vent, power box (in a development).I will either mow it close or weed whip the area.I was just concerned about planting to close to applying roundup. thanks for the info!

05-07-2004, 10:57 PM
Roundup is only active when applied to plant foliage. Therefore, you should be able to plant immediately. My only concern would be getting any undried Roundup on my skin.

D Felix
05-08-2004, 02:45 AM
undried Roundup on my skin.

Are you kidding???? There is a time for full PPE and all, but are you actually afraid Roundup will burn you???

If you are, I've got news for you. IT WON'T!!!! Roundup is probably one of the safest chemicals on the market right now, so safe you probably could (but DON'T!) drink it once it's mixed and it wouldn't hurt you. Maybe a little case of the runs, but that's it.... Don't do it though, there is no reason.

Spray the bed, come back the next day and add whatever soil you need to. Plant the plants, don't till the grass. Edge and mulch. It's that simple. Roundup needs time to work, and tilling will severely reduce the effects.

The only reason to spray one day and come back the next is to lesson the chances of leaving footprints of dead grass in the yard. Once it's dry, you can do anything you want, short of saving the plant/grass.


05-14-2004, 06:21 PM
Roundup doesn't do a d*** thing to my skin. D Felix knows what he is talking about here!!!

05-15-2004, 04:30 AM
I just read the Roundup Pro label and it says to wait 7 days before verticutting, slicing etc. turf for replanting to allow time for the product to translocate into the roots (see www.cdms.net). I would wait at least 3 days to make sure the translocation is complete before covering with mulch. If you wait a week you will be able to tell if you missed any spots...might save you a headache later. Neal

05-17-2004, 11:50 AM
I use roundup weather max and you only need 30 min before it is well absorbed into the plants. Just dont spray anything that you want to keep. I do the same as D Felix.

05-17-2004, 05:21 PM
Originally posted by D Felix
We've had luck with spraying on one day, then coming back and installing through the grass the next. Just make sure the grass is cut before you spray, and put a heavy coating of mulch down.

same thing here

05-18-2004, 12:12 AM
Originally posted by NCSULandscaper
same thing here

Wish I knew this last week:(

05-20-2004, 01:16 AM
Hmm... I've got to do a ton of flower beds where st augustine is right now. So you're saying i could just....

Draw out the pattern of where the beds are going, and spray the area down with roundup really well, and then do whatever I need to on top of that? e.g. soil and [plantings?

05-20-2004, 03:52 AM
Yup, I'd just make sure to wait a couple days for it to get in the roots real good. Its not imperative but works a little better.

D Felix
05-22-2004, 12:06 PM
Not being very familiar with St. Augustine, assuming that it spreads by rhizomes/stolons, I would edge it first to avoid killing large patches outside of the future bed area.

As for the Roundup being "well absorbed" in 30 minutes, it should be DRY by then. It still takes 3-5 days for it to translocate throughout the plant, a couple more for it to look fully dead....


05-22-2004, 12:50 PM
Roundup Weather Max, 30 minute gruarentee that it is well absorbed enough to kill. I did say that it would be better to wait a couple days but if you are not digging them up or cutting them off right after you spray then it will work fine the same day.