Weeds with purple flowers know as? 101 Quick Guide

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Weeds are primarily undesirable for the gardeners, and they always try to get rid of these weeds from their lawn. However, the scenic beauty of the purple-flowered weeds sometimes makes them think twice before taking steps to remove those weeds. Weeds with purple flowers know as? This topic will be discussed about some characteristics of such weeds that produce beautiful purple flowers. Besides this, some importance of these weeds will also be highlighted to show some positive uses. Along with this, the ways to prevent the tremendous growth of these weeds across the lawns and yards will be discussed to help the gardeners get rid of them. 

What are weeds?

Definition

Weeds are undesirable plants that generally grow along with the crops. These plants feed the nutrients from the produce and grow. In this way, the supply of nutrients to those crops is diminished, and these weeds kill the crops. Therefore, the growth of these weeds needs to be inhibited to enhance the development of crops.

Weed control

The removal process of weeds is called weeding, and the chemicals involved in killing these weeds are called weedicides. Weedicides should be sprayed on weeds before seeding and flowering (Weisberger et al. 2019). Few mechanical methods also can be used to remove the weeds by uprooting them from the ground. The best time of removing those weeds is before sowing crops or before seedings. 

Weeds having purple flowers

Everyone likes the beauty of purple flowers, and if they can be grown in proper places, it becomes charming. However, some weeds having purple flowers cover up the lawns and gardens, making this factor more complicated for the garden owner. There are many types of weeds that have been identified bearing purple flowers. However, there are four types of purple-flowered weeds that are most common. 

Henbit

Overview

Type: Broadleaf

Life cycle: Winter

Reproduction: Seeds

Appearance: 12 inches tall with dark green leaves

Growth place: Lawn

About Henbit

Henbit is a weed-grown during the Winter seasons. It can be identified by its square stems and pink-purple flowers and can grow about 16 inches tall. Sometimes, Henbit can be confused with Purple Deadnettle at first look; however, the main difference is that Henbit has a hairy appearance on their leaves. The upper leaves of this weed are just below the flower clusters and have no petioles. Both types of leaves in this weed are rounded and originate on both sides of the stem. The seeds of this weed are round-shaped, and there are no distinctive odors in this weed. The preferable habitat of this weed is moist areas, and it generally grows with winter crops and turfgrass. This weed reproduces in the form of seeds, and seeds are germinated in Summer, and the plant dominates across the Winter season.

Weeds with purple flowers

Prevention and control

Henbit spreads by seeds; therefore, controlling the seed production will be very helpful to control this weed. Besides this, applying herbicides can be effective on this weed to cripple seed production. However, these herbicides will not be worked after the appearance of purple flowers. In this context, the chemical controls should be implemented in early Spring by keeping in mind that the effectiveness of the herbicides will be declined with the maturity of this weed (Askew et al. 2021). Besides this, the herbicides need to be chosen according to the species, and all the instructions should be strictly followed for getting the best result. 

Creeping Charlie

Overview

Origin: Eurasia

First introduced: North America

Appearance: 1ft tall

Growth place: Lawn/Yard

Reproduction: Vegetatively by stems

About Creeping Charlie

This is a broadleaf weed from the Mint family, also known as Ground Ivy. These weeds can be about one inch high, and very quickly, they can grow around the lawn or yard. These weeds are fast-growing and the main culprit of becoming low-growing mats around the lawn. However, the flowers of these weeds have great quality, and it attracts the honeybees, mason bees, and bumblebees. This type of weed was first introduced in North America, and it has been used as an excellent ground cover for shade. Ground Ivy has bright-green, kidney-shaped leaves with scalloped edges (Curran et al. 2018). The purple-colored, funnel-shaped small flowers appear in the Spring season. If this flower is crushed, it has a mint-like odor. This weed can easily survive in any unsavory condition, which makes them exceptionally resilient. However, well-fed thick grass can dominate their growth significantly. This weed can quickly grow in moist places such as floodplains, low woods, and it is a very significant weed in lawns. It can grow very rapidly on the fertile and calcareous ground, and it can’t survive on acidic soil. It is distributed throughout the US states. This weed can be very harmful to some vertebrates, such as horses if eaten in a large quantity. 

Fostering the growth

  • Ground ivy can be used as a good ground cover as a substitute for grass for preventing soil erosion.
  • The nectars of the flowers attract honey bees and mason bees.
  • The leaves of this weed are highly enriched with vitamin C and can be used as a food item in the salad.
  • This weed has medicinal uses as the extracts of the leaves can be used to treat bronchitis, cystitis, coughs, and sinus problems.

Prevention of growth

Chemical control: A very few herbicides work to prevent its growth and kill this weed because of the high survivability of its stolons. Sureguard (Flumioxazin) can significantly reduce its population, whereas Gallery (Isoxaben) can lower the stolon’s ability to root, which is very effective for slowing down its spreading. Therefore, the post-emergence herbicides can be very effective in preventing its growth (Curran et al. 2018). However, most herbicides need to be applied with supplemental applications for better results.

Cultural control: There are a few cultural practices that can control the aggressive growth of this weed. Some practices such as deep and frequent water supply, improved surface drainage, and soil cultivation can hinder the development of this weed.

Biological control: There are no such established ways of controlling this weed with biological ways, but a fungus called Puccinia glechomatis can cause several damages on this weed, which has a great potential to use as birth control.

Wild Violet

Overview

Genus: Viola

First introduced: North America and Canada

Appearance: 15 to 25cm tall

Growth place: Lawn/Yard

Reproduction: Seeds and Rhizomes

About Wild Violet

This weed has heart-shaped green leaves with purple blooms. This weed is considered very hard to control because of its resistance to most herbicides and its highly aggressive growth. This weed is primarily found in moist and fertile soils with shaded areas. The reproduction of this weed generally occurs through seeds and rhizomes. This edible weed is excellent with violet flowers, but it tends to be weaker because the temperature rises during Summer. In an optimum growth condition, this weed can be self-seeded freely. This weed has a number of medicinal functions as well (Scavo et al. 2018). The flowers mostly start blooming from early Spring to early Summer season. The flowers have a white inside area that is somewhat hairy. The flowers of this weed have five petals (2 petals are on the side, 2 are on the top, and the final one is at the bottom). This weed can be 15 to 25cm in length, depending on the soil quality and geographical areas. This weed is native to the USA and Canada. The flowers and the leaves of this weed are edible which are riched with vitamin A and C. 

Wild Violet

(Source: Gardeningknowhow, 2020)

Fostering the growth

Many homeowners choose to cultivate this Wild violet weed due to its pretty violet flowers. People also allow this weed to grow due to its edibility as well. Some significant reasons make people tolerate these weeds on their lawn. This weed can make a great accent around trees or near any water sources; they can even grow in a container as well.

  • The violet flowers are beautiful to increase the scenic beauty of the garden.
  • These flowers are very friendly for the bees and other pollinators.
  • It can avoid the use of herbicides.
  • It is very suitable for maintaining a good landscape design.
  • The flowers and leaves of this weed are edible and vitamin-rich.

Prevention of growth

The use of herbicides is the most common way to get rid of these weeds. At the time of applying herbicides, it is generally transported down to the taproot of this weed as the nutrient source for Winter. This way, the herbicide can kill these weeds in an effortless manner. However, the use of herbicides will not be that much effective during the Spring or Summer seasons. In these seasons, the herbicides will kill some surface leaves of this weed (Scavo et al. 2018). However, the wax-coated leaves of this weed are very resistant to many common herbicides. Hands can easily pull off the young wild violets; however, the larger plants cannot pull out by hand. A well-maintained lawn can be very effective as the dense grass will prevent the spreading of the roots quickly.

Purple Deadnettle

Overview

Genus: Lamium

First introduced: USA, Canada

Appearance: 30cm tall and 18cm wide

Growth place: Lawn/Yard

Reproduction: Seeds

About Purple deadnettle

lamium maculatum, spotted deadnettle, spotted henbit

It is another winter broadleaf weed, which can be found all over the US. This weed generally germinates in Winter, and it blooms during Spring. Typically, these deadnettle blooms are visible during April; however, they can be visible earlier or later depending on geographical areas and temperature. This weed generally grows in moist areas such as drainage ditches along with edge of woodlands and many such moist places. The flowers of this weed are light purple and small tubular shaped (Rocha et al. 2021). The leaves of this weed are triangular with shallow lobes. This weed is closely related to another weed, Henbit. The leaves of this weed are crowded around the axis of the stem, and the color of the upper leaves is reddish-purple. This weed can be grown around 30cm tall and 18cm wide under optimum conditions. Although this weed was first introduced in the US, now this weed can be seen in many European and Madeterian countries. The leaves of this weed are edible and primarily used in salads. It has a few medicinal values as well.

Purple deadnettle

(Source: Marylandbiodiversity.com)

Fostering the growth

  • The leaves of this weed are edible and can be eaten with salads, and have significant food values.
  • This weed has medicinal uses as this can be used at home as a medication to get rid of some allergies.
  • This weed can also be used to make beneficial infused oils for making lotions, balms, etc.
  • Purple deadnettle can be used as an anti-inflammatory agent against aches and pains and insect bites.

Prevention of growth

Chemical control: This is an annual winter weed; therefore, if the seed production can be stopped during Spring, it will be easy to control this weed. These weeds can be managed quite easily by using pre- or post-emergence herbicide products. Pre-emergence herbicides such as Sureguard, Gallery can be used, whereas Glyphosate and Glufosinate can be applied as post-emergence germicides (Rocha et al. 2021). However, it will be pretty challenging to control these weeds at the post-emergence stage.

Biological control: Some organic herbicides are also available in the market; those are primarily post-emergence herbicides. However, these organic herbicides are non-selective and simultaneously can damage the desirable plants after applying. Multiple applications of these organic herbicides are needed to control the growth of this weed.

Conclusion

Weeds with purple flowers are making gardens or yards beautiful. However, the tremendous growth of these weeds sometimes causes trouble. The above-mentioned purple-flowered weeds have some food values and medicinal effects; therefore, some people also keep them in their garden. Besides this, there are many ways to get rid of these weeds from lawns and gardens.

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