Can roundup be sprayed on Daylilies with no Damage to the lily?

no!! Roundup will kill any plant material it touches!

Lee Anne is right. Roundup is a great way to kill any daylilies.

What is your goal? Why would you want to do it?

Hi, Robert. to ATP!

I detest weeding around my daylilies, too. To keep my sanity (and my daylilies!), I have mulch on hand before I start to weed a patch of it. Pull weeds a bit at a time and cover the areas in between plants with a heavy layer of mulch, say 3 or 4" worth. Each time you visit your garden, pull any weeds that manage to show up around your daylily stems; usually there will only be a few at a time.

The nature of daylily growth would make the application of any systemic poison more time-consuming than it would be to just go ahead and pull the weeds, and immediately afterward apply mulch. Keep them mulched as well as you can and you'll find that the weeding chores will soon become much more manageable.


There's also a forum for daylilies if you'd like to see what methods other daylily growers use for weed control. http://garden.org/forums/view/... .

I would cast a vote for coarse mulch, like 1-2 inch bark chunks.

Fine mulch may absorb too much water and keep it away from the soil and roots. Also, weed seeds can blow onto fine mulch and germinate just fine.

A too-thick layer of very fine mulch (like 2-3" of fine sawdust or coffee grounds) not only absorb too much water, but may even slow down the exchange of oxygen and CO2 into and out of the soil.

Also, if the bottom layer of fine mulch goes at all anaerobic, it may start to ferment instead of breaking down aerobically, and release fermentation products like organic acids and alcohols. Bad for root hairs!