Do you know how to control lawn weed? Speedwell is a well-known weed that you can find in your front yard, backyard or garden. Throughout the United States, several speedwell species tend to differ in appearance. You can take control of your common weeds by taking the flowerheads away before flowers bloom in addition to other methods we share with you below.
What Is Speedwell?
Speedwell, also known as Veronica Officinalis, is a tiny herbaceous plant from northern temperatures.
There are several types of speedwell, all with small, lobed, numerous leaves and small flowers, varying in the colors white, blue, pink and purple. Leaves are in pairs and have scalloped edges while heart-shaped seed pods grow on the stem below the flowers.
How Does Speedwell Grow?
Either perennial or annual speedwell appears in early spring but can begin greening up in late winter. Most speedwell is characterized by creeping growth with rooting at the nodes and its flowers are very small on short stalks. Speedwell can grow in most any condition but thrives in dry, sandy and shady areas. This is an easy-to-grow plant which can grow 1-3 feet tall, while prostrate speedwell can grow to about 10 inches tall.
Process of Planting and Caring for Speedwell
Speedwell is planted best when it is grown in fertile and well-drained soil with natural sunshine. Typically, planters choose spring as the season to plant speedwell in.
However, Veronica is able to be sowed by seed in a container with a cold frame during the fall season. After planting, planters break up the soil and mix in the compost before they create a hole that is about double the size of the plant's container. When speedwell planters place the plant inside of the hole they created, they make sure to check that the highest point of the root ball is at the same level of the soil surface.
Caring for speedwell can be easily done with these tips in mind. In summer, it is important to water speedwell on a weekly basis when the rain is less than an inch. You want to make sure your speedwell is covered with a layer of compost and mulch to keep the moisture. Removing the faded spikes from Veronica is recommended to create the best bloom. When speedwell is exceptionally tall, maintenance may call for staking. In the colder periods between late fall and early winter, you will want to cut the stems back to 1 inch or above ground level.
Physical and Chemical Control
For physical control of speedwell, encourage optimum turf growth conditions by applying fertilizer in late fall to avoid the initial flush of growth associated with early spring fertilizing. Control speedwell with chemicals by applying a pre-emergent herbicide like pendimethalin, balan or dacthal to prevent seed germination in the spring. You can also spot spray with a post-emergent broadleaf herbicide containing triclopyr, clopyralid, or 2,4-D, MCPP and dicamba.