Kill Daylilies - Knowledgebase Question

cincinnati, Oh
Avatar for steph2020
Question by steph2020
October 31, 2010
I moved into this house and the people before had a HUGE (10x15ft) patch of nothing but orange daylilies. I've been trying to dig them up but I feel like I'm getting nowhere. Can I use roundup? Or any suggestions??

Answer from NGA
October 31, 2010
Because daylilies grow from underground rhizomes Round Up won't be very effective. I've cleaned out a bed of daylilies by first cutting down the long blades (a sharp lawnmower can do an efficient job), then covering over the entire bed with landscape fabric cloth (or several thicknesses of newspaper). Be sure to anchor everything down and then cover over the top with 3-4 inches of a thick mulch material. The idea is to keep sunlight from the plants so they will die out. It can take an entire year but by this time next year the bed can be cleaned up and you can plant something new in it. The alternative is to mow the daylily foliage down and then dig with a garden fork to remove all the rhizomes. It's labor intensive but eventually you'll reclaim the planting bed.

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