How to identify and manage Common Mallow Malva neglecta, a common lawn weed. Also called, cheeseweed, buttonweed or roundleaf mallow. Photos are included to help with weed id.
Mallow is often found in new lawns and gardens where it
can be troublesome because it produces a lot of seeds. Its presence
may indicate fertile soils.
It has a Long, deep taproot and a spreading growth habit. The leaves are rounded with five to seven distinct lobes. Pinkish-white flowers bloom in late spring and continue into the fall.
It can be confused with ground ivy. One way to tell the
difference is to compare the stems - ground ivy stems are square, mallow
stems are round.
Also Known As:
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Small populations can easily be controlled by hand weeding. And just like other annual weeds, pull them when they are young - before the seeds ripen and spread.
Chemical control: Using pre-emergent herbicides in the spring will help prevent weed seed germination.
Broadleaf herbicides applied in mid-spring through early summer when the plant is young and actively growing are most effective. Products that contain 2,4-D, MCPP, dicamba, clopyralid or triclopyr as an active ingredient can successfully control the plant. 2,4-D applied alone will just damage the leaves and then it will grow back.
Glyphosate (roundup) is non-selective and can also be used to kill mallow in landscape beds.
Vinegar-based (20% acetic acid) herbicides are considered a
natural organic weed killer. They can be used as a non-selective
herbicide in place of glyphosate and will kill annual weeds.
University of Illinois @ Urbana-Champaign Turf grass Program: http://www.turf.uiuc.edu/weed_web/descriptions/mallow.htm