How soon can I reseed after spot treating with Roundup?

susanpmiAugust 13, 2013

I am about to spot treat some Canadian Thistle in my lawn with Roundup. I have been mowing it down for two summers and it is laughing in my face and sending shoots to my garden beds. I am sure I will get a few bare spots with the treatment, and I am wondering how long I should wait before patching the lawn with seed. I want to get it going as soon as possible after the thistle is dead, because I am in Michigan and first frost can come early! Can I plant right away or should I wait a while?

Thank you for reporting this comment. Undo
MulchMama

The label will tell you to wait a week. If you can wait that long, then wait a week. But in reality, you can reseed right away because Roundup only works through plant foliage, which seeds don't have.

    Bookmark   August 13, 2013 at 3:45PM
Thank you for reporting this comment. Undo
Tiffany, purpleinopp GardenWeb, Z8b Opp, AL

It may take several applications to kill Canada thistle. I'd wait until you are sure they are dead.

    Bookmark   August 14, 2013 at 10:46AM
Sign Up to comment
More Discussions
Flowering Orchid
I have a house plant that my mother had started and...
junefarmgirl
clay soil-yellowish plant leaves
I have Indiana clay soil that hasnt been worked in...
muddy_mom
WANTED: Chicago Area Exchange Meetup
I'm going to try to get everyone here to meet up and...
zubdog
Emergency transplanting advice
Dear fellow Midwesterners, I need your advice on the...
uchi_newbie
Mystery Perennial blooming now in KC
I don't often see a perennial blooming this late in...
slimwhitman
© 2015 Houzz Inc. Houzz® The new way to design your home™