Consistent, appropriate lawn care is a necessary aspect of controlling wild violet weed invasions of your home landscape. Wild violets have a sturdy root system that leads to lengthy invasions. Prevention through care greatly increases your ability to avoid problems. In conjunction with diagnostic options, you can keep your home garden healthy, vigorous and weed-free.
Wild violet weed lawn invasions occur from the species Viola pratincola as well as common blue violet (Viola papilionacea). Wild violets are cool-season, broadleaf weeds. These perennials produce flowers in various colors, including light tints of blue and dark shades of purple. Blooms are either showy or inconspicuous, according to the University of Nebraska-Lincoln Extension Horticulture. With dense root systems and tolerance to drought, wild violets are challenging to control in the home lawn; consistent care is essential.
Wild violets are weed pests of turf grass that invade and stay for extended periods of time, often up to 30 years, according to the Purdue University Turf Science. Weeds that invade the home lawn may wreak havoc either due to their competitive nature or because they adulterate the aesthetic quality of your lawn. Competing weeds often steal the nutrients and water your lawn would otherwise enjoy. An expanse of grass littered with unwanted flowers can ruin your garden design plans. To avoid these damaging effects, provide optimal lawn care on a daily basis to prevent the spread of wild violets.
Lawn care is key to avoiding wild violets. Keep in mind the three essentials: nutrients, mowing, water. Fertilize your lawn with up to 2 lbs. of nitrogen annually for every 500 square feet of lawn to prevent wild violet weed growth. For appropriate mowing of your home lawn, maintain a turf height of approximately 3 inches through consistent mowing, according to the Purdue University Turf Science. When watering, do not overdo it. Provide one deep watering that reaches your lawn's roots and wait to reapply until drought symptoms appear; look for a blue cast in your lawn or grass that remains flat after being pressed down.
If you are dealing with a large invasion but your lawn appears healthy, consider leaving the wild violets if you are not bothered by them aesthetically, according to the UMass Extension. Care for your lawn by removing wild violets manually before applying chemicals in cases of severe infestation. Pull weeds by hand or dig them out as thoroughly as possible, including the root systems.
If daily care does not solve your problem or if manual removal requires too much maintenance, you may need to add herbicides to your lawn care program. In home turf grass, apply combinations of chemicals with the active ingredients triclopyr, benzoic acid and phenoxy, according to the UMass Extension. For an appropriately customized and safe herbicide program for your home lawn care, contact a licensed professional or your local county extension agent before attempting to mix chemicals on your own.