Bulbs
Flower Basics
Flower Beds & Specialty Gardens
Flower Garden
Garden Furniture
Garden Gnomes
Garden Seeds
Garden Sheds
Garden Statues
Garden Tools & Supplies
Gardening Basics
Green & Organic
Groundcovers & Vines
Growing Annuals
Growing Basil
Growing Beans
Growing Berries
Growing Blueberries
Growing Cactus
Growing Corn
Growing Cotton
Growing Edibles
Growing Flowers
Growing Garlic
Growing Grapes
Growing Grass
Growing Herbs
Growing Jasmine
Growing Mint
Growing Mushrooms
Orchids
Growing Peanuts
Growing Perennials
Growing Plants
Growing Rosemary
Growing Roses
Growing Strawberries
Growing Sunflowers
Growing Thyme
Growing Tomatoes
Growing Tulips
Growing Vegetables
Herb Basics
Herb Garden
Indoor Growing
Landscaping Basics
Landscaping Patios
Landscaping Plants
Landscaping Shrubs
Landscaping Trees
Landscaping Walks & Pathways
Lawn Basics
Lawn Maintenance
Lawn Mowers
Lawn Ornaments
Lawn Planting
Lawn Tools
Outdoor Growing
Overall Landscape Planning
Pests, Weeds & Problems
Plant Basics
Rock Garden
Rose Garden
Shrubs
Soil
Specialty Gardens
Trees
Vegetable Garden
Yard Maintenance
How to Kill Wild Onions in Grass
How to Kill Wild Onions in Grass. Lawn weeds are sometimes a challenge to control. It is difficult to find herbicides to kill the weed without also killing the grass. When determining which herbicide to purchase to kill wild onion in your grass, read the labels carefully so that you apply the right product for your type of turfgrass. Choose a...
Lawn weeds are sometimes a challenge to control. It is difficult to find herbicides to kill the weed without also killing the grass. When determining which herbicide to purchase to kill wild onion in your grass, read the labels carefully so that you apply the right product for your type of turfgrass. Choose a November day with little wind on which to apply the herbicide, so that the herbicide doesn't drift onto your desirable landscape plants.
Things You'll Need
Lawnmower
Tank or hose-end sprayer
Herbicide
Mow the wild onion. This will allow the herbicide to better penetrate the foliage, according to horticulture extension agents with Clemson University.
Pour the herbicide into the tank portion of the sprayer. Use the amount specified on the label. Add water at the rate recommended by the herbicide manufacturer. Replace the cover on the tank.
Spray the herbicide over the wild onion plants until they are completely saturated with the product.
Wait one day after application and then water the area that you treated.
Reapply the herbicide, in the same manner, in spring, and again in November. You may need to repeat the process the following spring. The timing of this spraying cycle, according to the Clemson Cooperative Extension website, will keep wild onions from producing their next generation of bulbs.
Wait two weeks after application to mow the lawn.
Tips & Warnings
Look for herbicides containing Imazaquin or 2,4-D for control of wild onion. These chemicals are not safe on all grasses. If you have any questions as to the safety of these chemicals for your type of turfgrass, contact your county cooperative extension office for advice.
Don't mow the lawn again for the first two weeks after applying the herbicide. Herbicides may contain toxic chemicals. Read and follow all label directions and cautions wear protective clothing, including a breathing mask during application.
