SPEEDWELL OVERVIEW Speedwell is a perennial weed and is very difficult for both the amateur and professional to control. The label will state what type of lawn and what garden plants can be sprayed without damage. Sign up for our newsletter. Veronica spp Herbicidal Control Options Preemergence: Dithiopyr, Isoxaben, Prodiamine, Simazine Post Emergence: Carfentrazone, Chlorsulfuron, Fluroxypyr, Quinclorac, Trifloxysulfuron Please note: one or more of these active ingredients may exist in combination-type brand name products. In a few years, it can spread from a few patches to cover the entire lawn. Develop a regular schedule of watering, fertilizing with high-nitrogen lawn fertilizer and mowing. prostrate speedwell veronica prostrata. ... Speedwell is difficult to control but does not invade areas that are well fertilized, are well drained, and get lots of sunlight. This is a viable option at the beginning of an infestation and on young weeds. Because it never gets very large, it seldom causes major competition problems for crops, but it can get to high densities at times and then become more of an issue, such as in a kale crop I saw recently that had large quantities of it because the herbicides used did not control it. Purselane speedwell flowers (left). The herbicides tolerated by creeping speedwell include clopyralid, dicamba, picloram, MCPA and 2,4-D. Slender speedwell (Veronica filiformis Sm.) That plant is considered moderately invasive in several areas. Like the other speedwells, the leaves are both alternate (end of stem) and opposite (base of stem). Follow the product label instructions on how much to use. Purselane speedwell capsules (right). How to Control Persian Speedwell. It is a well-known weed that you can find in your front yard, backyard, or garden. Water the lawn weekly during the driest part of summer, leaving the sprinkler running for an hour or two in each spot. Persian speedwell (Veronica persica), a common, annual, flowering plant, blooms from February through May and sets … Her work has been published in the San Francisco Chronicle and on other websites. Prune trees that may shade areas affected by Persian speedwell. Slender speedwell (Veronica filiformis) is a low-growing plant with bright blue, long-stemmed flowers early in the year, usually March to May.It is low-growing and can form dense patches in a lawn. The variety Veronica Americana is edible and nutritious and has been used in a tea to alleviate symptoms of allergies and asthma. Too much causes more problems than it solves. About the Speedwell. Purslane speedwell stem (left). [6] [7] See the Veronica for special weed control considerations. Choose a product labeled to control speedwell. Studies have shown that tilling after dark is most effective. Control speedwell by using good cultural practices, removing the flowerheads before the flowers bloom and, in the most difficult cases, using herbicides. Let’s take a look at how to get rid of speedwell in both the garden and lawn. This method, which may take several weeks, works best for large areas affected by Persian speedwell. Sign up to get all the latest gardening tips! Germander speedwell can be a difficult weed to remove, as it is resistant to many weed killers. Corn speedwell (Veronica arvensis) is a small, weak, low-growing winter annual that thrives in thin open turf and often appears in solid stands.The lower leaves of corn speedwell are rounded and toothed, while the upper leaves are smaller and more pointed. For serious infestations, controlling weed speedwell calls for a combination of good cultural practices and the use of herbicides. Superb in bouquets, they also look lovely in the perennial border. It is also known as ‘cat’s eye’ and ‘birds eye’, both names referring to the … In garden beds. Speedwells typically produce neat clumps of clean, green foliage from which dense spikes of blue, purple, pink, ('Giles Van Hees') or white flowers bloom over several weeks time. Also known as birdseye, gypsyweed or veronica, speedwell is a creeping annual weed that can cover your entire lawn if not properly treated or removed. It is very quick to col… Purselane speedwell plant (right). Speedwell-Veronica (More Lawn Weeds) ... Hand pulling or using an appropriate weeding tool are the primary means of mechanical weed control in lawns. Dense, healthy lawns choke out speedwell as well as many other lawn weeds. Drive wooden stakes through the plastic sheeting with a hammer. Speedwell (Veronica spp.) Two characteristics that most have in common are four-petaled blue or white flowers and heart-shaped seed pods. Stems are hairy and tufted. The flowers of creeping speedwell look very similar to scrambling speedwell, but this annual weed has larger leaves and it is seldom found in turf. Remove plants before they set seed in spring for the best chance of their eradication. It is becoming more of a problem on lawns in throughout the… This task may not be necessary if you eradicated Persian speedwell plants before they set seed in spring. As it does with pre-emergent herbicide, Persian speedwell often proves resistant to post-emergent herbicide. The Plants Database includes the following 34 species of Veronica . Although technically an annual that can be grown as a ground cover, Persian speedwell is widely considered a weed because it spreads so easily, often popping up along roadsides and in turfgrass as much as in landscaped areas. Starting in early spring, and sometimes late winter, this Ohio weed is highly invasive and one of the few weeds that is considered stronger than turfgrass. The plastic sheeting will absorb and trap heat from sunlight, solarizing the soil and killing the Persian speedwell and other plants. The best time to plant it is in spring, once it is easy to work the soil in your region. Speedwell, Thymeleaf Veronica serpyllifolia Speedwell spp. There are also dense flowering groundcover varieties available with green to yellow, ('Sunshine'), foliage and purple, blue or white flowers. Will Crabgrass Control Plus 0 - 0 - 7 with 0.37% Prodiamine Herbicide work to control corn speedwell? Avoid tilling the soil with a garden tiller because tilling may bury remaining seeds, promoting germination. Speedwell is also called birdseye and gypsyweed. This is a small annual weed which is commonly found in crops and gardens throughout the year as it can germinate in both spring and autumn. Prune dead, broken and diseased branches to open tree canopies, allowing more sunlight into the affected areas. 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