Will Crossbow Herbicide kill speedwell (veronica) without harming my zoysia grass lawn? Many times the speedwell will escape from the landscape beds into the lawn. This broadleaf weed has a fibrous, shallow root system. Thyme-leaf speedwell growing in shaded area of a lawn. The lower, non-flower, portion of the plant has leaves that are round-to-oblong with rounded teeth on the margin in an opposite arrangement. Stems & Roots: Stems erect, or spreading from the base and becoming erect, 5-30cm (2-12in.) Corn speedwell is similar in many respects to Persian and ivyleaf speedwell. Weed Characteristics. Corn speedwell flowers are small and white to blue in color. Corn speedwell is a spreading winter annual that germinates in the fall. Small white, blue or lavender flowers bloom in heart-shaped pods from spring into summer. Corn speedwell. Plant. 1. If you have a lawn with Speedwell, and a lawn without, make sure you thoroughly clean the blades before re-using to ensure that you don’t carry it to your other lawns. Slender speedwell leaf. I recently sprayed with a 3-way and triclopyr mix. Please advise best options to kill speedwell and crabgrass in my Arizona Bermuda grass lawn? 3oz/gal of triclopyr and 2oz/gal of 3way. The entire corn speedwell plant is covered with soft, fine hairs. Other names: rock speedwell, wall speedwell, common speedwell: Leaf type: Broadleaf: Flowers: Blue, purple: A low-growing plant with sprawling stems and small, oval to triangular leaves. It belongs to the figwort family along with other less common weedy speedwells. Speedwell rarely reproduces from seed as it is a self pollinating plant. Corn speedwell (Veronica arvensis L.) is an annual. Corn speedwell is a small, low-growing annual that often goes unnoticed. Veronica arvensis, wall speedwell, corn speedwell, common speedwell, rock speedwell, field speedwell is an annual flowering plant in the plantain family Plantaginaceae. See the look-a-likes tab for more information on the other speedwell species commonly found in Michigan. Lawns can become infested with this weed. Winter annual with prostrate growth habit. The best way to tackle speedwell organically in borders is to hoe it before it flowers and sets seed, then remove it or leave it on the soil surface on a hot day to wither and die. How Lawn Master Deal With Speedwell. spp.) Corn speedwell (Veronica arvensis) and Persian speedwell (Veronica persica) are members of the Figwort family. The plant is covered with fine hairs. 10 days after I gave the lawn my normal short mow, raking , scarifying, over seeding and fertilising treatment. Corn speedwell lawn weeds #cornspeedwell #lawnweeds. Creeping speedwell spreads by stolons much like ground ivy and displays its blue-violet flowers in the spring. Treatment may be risky but in bad cases it is clearly worth a try. Clive, a regular customer for your products. Lower leaves are rounded, toothed and arranged opposite. Thought you may find this of interest. It is not a fussy weed and … Though there are several speedwells found in Michigan lawns and gardens, corn and Persian speedwells are the two that behave as winter annuals. It can hence be used in treatment of scurvy, skin infections, and ulcers. Corn Speedwell. Suddenly, in late spring, a little green weed with triangular, deeply scalloped lower leaves appears bearing small blue flowers. Veronica/speedwell is slowly taking hold in my yard. Location Speedwell prefers acidic soil and moist, shady areas and is most troublesome in the Northern United States. We used science-based practices to ensure your yard is as healthy as can be and can fend off ground ivy troubles. So far the lawn is free of any sign of germander speedwell. Weed Identification. Corn Speedwell can be identified by its ascending, branched stems radiating from the base of the plant. In garden beds. Corn speedwell germination happens in the fall, so herbicidal treatments should be applied before winter. Weed Weapon is systemic and kills weeds down to the roots within 2-4 days and is an ideal product for use around established trees and shrubs.It is inactive in the soil so planting can be safely carried out soon after treatment. Corn speedwell weeds can form dense patches that are up to 4 inches across from a single plant, and the heal all weed has a … It does not completely crowd out desirable grass, however. How effective Trimec Southern Broadleaf Herbicide on corn speedwell? Veronica filiformis Speedwell, also called creeping Veronica, was originally used as a rock garden plant. The variety Veronica Americana is edible and nutritious and has been used in a tea to alleviate symptoms of allergies and asthma. The use of adapted species of grass, adequate fertilization, proper mowing and irrigation practices, and insect and disease control is the best way to minimize problems. Corn Speedwell Identification Controls for Corn Speedwell. Location Northern Indiana. The plant intermingles with the grass and the leaves are of a similar colour. Corn Speedwell. Crabgrass. Life cycle. So far I've tried both Ortho Weed-B-Gone Max and Bayer Advanced All-In-One weedkiller using a pump sprayer. Speedwell began to disappear. Thread starter rowwright; Start date Apr 25, 2017; R. rowwright LawnSite Member. Both the leaves and stems are fleshy. T­Zone (triclopyr + 2,4­D + dicamba + sulfentrazone) are good three­way may be tank mixed with either simazine or atrazine. Speedwell can be a common weed problem in newly established areas of cool-season turfgrass. 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