Wild Violet (Viola papilionacea)
Wild violet is a perennial weed that difficult to control and spreads by using underground stems. The leaves have a thick, waxy covering that are heart-shaped. The flowers have purple petals with a white or yellow center.
Soil conditions that favor growth:
- Increase light, prune or remove trees
- Increase mow height
- Thicken lawn by planting grass in any thin or bare lawn areas
Remedy: Post-emergent control in spring or fall, extremely difficult to control may take several applications, may not completely eliminate this weed.
Wild violet is also commonly known as blue violet and can often be found in bunches. The plant usually spreads through rhizomes and lives for more than two years. Also found in shady places where soil is moist.
Wild Violet is a perennial broadleaf weed. The weed can grow and live in fields, green meadows and low woods, shaded areas of lawns, waste areas, roadsides and railroads. The weed is widely spread throughout North America and Canada.
The weed is featured as colony forming low growing perennial. The leaves are green, heart shaped with violet like flowers. The leaves and stems are hairless.
Wild violet flowers have five petals and color vary from white to deep purple. Blooming period is from March to June.
Removing the weed manually will be difficult. It will be ineffective to control roots that remain in the lawn, as they can reproduce.
Cutting at the appropriate height is the key to kill the weed. Growing thick turf and applying water regularly will also help to eradicate the weed. Soil tests and a good fertilization program are essential.
When it comes to applying chemicals to control wild violets, you must know that wild violets have a waxy coating on leaves. The waxy coating has the ability to make ineffective some herbicides. Dicamba or triclopyr are the two key herbicides proved to be highly effective to kill the weed.
Through proper lawn maintenance and other cultural control mechanisms, wild violet weed can be prevented to grow in lawn grass. If you fertilize your lawn properly, mow and apply water on regular basis, you will have a dense, thick turf grass lawn that will resist its growth.
Some post-emergent herbicides can be effective when applying to your lawn. You can use broadleaf weed killers to eradicate wild violet as well. For extended control you may need to repeat the use of post-emergent herbicides.