While maintaining your yard, you noticed a yellow flower in your garden space? And, now you are wondering which flower plant is that. There is a good likelihood that the plant that produced yellow blooms was a weed.
Before you decide what to do with that plant that has grown in your yard, you should have proper knowledge about the plant you will have to deal with.
Several weeds spread quickly and can invasively affect other plants in your yard. You have to deal with them appropriately.
This article will give you in-depth information about ten different weed plants with yellow flowers, how to identify their variety, and how to deal with them to make proper weed control or replace them with other plants for a local pollinator.
You should keep in mind that several weed plants are suitable for pollinators. But it is also true that they can aggressively attack your garden, especially the vegetable garden.
Keeping all aspects in mind, having good knowledge and information about weed plants will benefit you.
Without further ado, let’s get started!
10 Common Weed Plant With Yellow Flower
The most prevalent sort of weed in your garden is one with yellow flowers. Following is the explanation of how to identify the variety of weed plants with yellow flowers you are most likely to come across:
Scientific Name: Taraxacum
The most common yellow-flowered weed that you might see in your garden is the Dandelion. To your surprise, there are 250 types of dandelions present in nature. They all have an identical-distinctive-looking flowerhead. These fower heads can be pink and white, but most dandelion weeds have yellow flowerheads.
A wide variety of dandelion blooms in the spring season.
The flowerhead, which has many florets, is at the apex of an elongated stalk. A seed puff of tiny, wind-dispersed seeds replaces the flowerhead on dandelions when they begin to set seed.
Dandelions feature a basal rosette of long, narrow, lobed leaves. The leaves can be smooth or hairy, based on the season.
2. Yellow Hawkweed
Scientific Name: Hieracium caespitosum
We also know yellow Hawkweed as meadow hawkweed. This plant is identical to the Dandelion. You can commonly find them in your yard from May to July.
The apex of bristly stems produces compact clusters of yellow flower heads. A yellow hawkweed plant can have up to 30 flower stems with 5 to 30 flower heads.
Its long narrow leaves grow up to 6 inches. As it looks like a Dandelion plant, its leaves form a basal rosette similar to Dandelion. However, they are not lobed and have hair on both sides of the surface.
Yellow Hawkweed or Meadow Hawkweed is very invasive and tough to control. The plant reproduces through seeds, rhizomes, and creeping stems (stolons).
Additionally, although it may tolerate shade, yellow Hawkweed often grows in sunny areas. It flourishes in various contrived habitats, such as fields and meadows. Furthermore, the weed damages grasslands by producing massive monocultures that supplant forage plants.
3. Bird’s Foot Trefoil
Scientific Name: Lotus corniculatus
This perennial plant has yellow flowers in whorl form and can grow up to the height of three to five feet. This weed plant prefers moderately acidic soil and adequate rainfall. However, because of the dense mats, it may develop, a bird’s foot trefoil has the potential to take over and stifle the growth of other plants.
Cleaning boots and other equipment used when trekking in wilderness regions is one approach to prevent bird’s foot trefoil from spreading in your yard. You can avoid bird’s foot trefoil from growing in your gardens and yard by plucking it out when you see it.
4. Common Evening Primrose
Scientific Name: Oenothera biennis
Common Evening Primerose is considered a wildflower. The reason it is called Common Evening Primerose is that its trumpet-shaped flower opens in the evening time. You can find them commonly in woodland and areas and fields.
Native American tribes employed common evening primrose as a food source and a painkiller. Additionally, it feeds nectar to hummingbirds.
The six-foot-tall common evening primrose is not something everyone wants, even though some might even buy seeds for it. You can easily remove it by pulling on the root.
Scientific Name: Barbarea Vulgaries
Wintercress weeds are biennial plants that are native to Eurasia and North Africa.
Wintercress is a plant that can grow up to about 24 to 32 inches in height (60-80 cm). It is a highly suited weed to its environment and may grow anywhere, including hay fields, waste ground, rocky outcrops, stony slopes, and more.
The leaves are green, deeply to pinnately serrated. One to four pairs of smaller lateral lobes are in the bottom ones, which have a wide, rounded end lobe. The stalk-borne leaves are nearly oval and gradually smaller as they ascend.
6. Creeping Cinquefoil
Scientific Name: Creeping Cinquefoil
You may have overlooked this weed plant growing on your lawn and other plants because of its tiny flowers. They have segmented leaves with sharp edges.
Once they make an abode on your lawn, they spread fiercely all over the place through its creeping stem that takes root.
When left unchecked, this invasive weed can grow in monocultures. Furthermore, it is a blight on flowerbeds and lawns.
You can use raking to weaken creeping cinquefoil more successfully than hand weeding. For severe creeping cinquefoil infestations, weed killer works well. You must spray weed killer after roughly six weeks to prevent weed growth. June to October sees the blooming of creeping cinquefoil.
7. Common Ragwort
Scientific Name: Senecio vulgaris
Common ragwort, an all-year weed plant that belongs to the daisy family, can start growing in the summer, spring, or fall. This weed plant can be toxic for herbivores and is a pain for allergic people.
Since common ragwort can be widespread, you should eliminate it from your yard before the flower grows the seed. If not, a common ragwort infection will come rapidly.
Though for butterflies, this weed plant is not infectious. It is among the most common flowering weeds for butterflies. So, if you are growing butterflies, you do not want to eliminate them from your garden and let them grow among other plants.
8. Creeping Buttercup
Scientific Name: Ranunculus repens
The creeping buttercup is a tiny plant that thrives in moist soil and sends out fibrous roots. The vivid yellow blossoms of creeping buttercup, which draw pollinating insects, make it easy to identify. As its name implies, it can grow a dense network of shoots, runners, and roots and is a genuine spreader if you overlook its growth in your yard.
Five to seven petals, clusters of stamens, and pistils are found at the center of flowers, about half an inch in diameter.
Creeping buttercup won’t be able to take over a dense, well-drained lawn. To make grass robust enough to resist this weed, keep it mowed and fertilized. When necessary, pulling is also not too difficult.
9. Golden Clover
Scientific Name: Trifolium aureum pollich
Also known as Palmate Hop Clover because its growing flower resembles hops. Golden Clover is a biennial plant that you can find in your yard in the month from June to August.
Most times, fragile, uneven lawns result from this common garden weed. It keeps the grass from being starved of the moisture and nutrients it needs to thrive and from being displaced by golden clover.
Golden clovers can be picked up by hand. To keep golden clover at bay and keep your lawn from becoming patchy, you should fertilize the other plants in your yard in the spring and fall. It is simple to identify and get rid of this plant once it has been found growing in your garden or yard.
10. Wild Parsnip
Scientific Name: Pastinaca sativa
Wild parsnips and wild carrots belong to the same family. Although they appear similar, wild parsnips have yellow blooms, and wild carrots have white blossoms.
Wild parsnip can grow to heights of several feet if left uncut. Their general shape resembles an umbrella and is covered in tiny yellow flowers blooming in clusters. Wild parsnip leaves have an edge that resembles a saw.
It only develops tiny rosettes on its leaves during the first year of its existence. The plant grows long stems during its second year of development to draw golden flower clusters.
Once you identify that wild parsnips are growing in your yard, you can eliminate them using the post-emergent pesticide 2,4-D Amine Weed Killer to treat them.
Common Way To Get Rid Of Yellow Flowered Weed In Your Yard
There are three most common ways to eliminate yellow-flowered weeds in your yard:
- Plugging with hand
- Use a post-emergent weed killer
- Apply a pre-emergent herbicide
Hand Plugging is one way that is applicable for all kinds of weed. Especially weeds that have little roots. However, getting rid of weeds with large and deep root systems might be tricky, even with weeding equipment by your side.
Weeds that sprout from sections of roots that were left in the ground are even harder to control.
For such tough to deal with weeds, you can use a post-emergent weed-killer that will not harm your lawn or plants.
If the yellow flowering weed has already produced seeds, a pre-emergent herbicide is suggested. You can stop the weeds from sprouting by applying a substance to the earth weeks before seed germination. Depending on the type of weed, pre-emergent herbicides are typically used in the spring or the fall.
You will not believe weeds’ bad or good effects depending on the location. For some areas, weeds with yellow flowers can be beneficial and welcome in gardens and yards, but they are still invasive in other places.
Yellow-flowered weeds in abundance can be annoying and difficult to remove. They are hazardous to animals and humans and can result in blistering, blisters, and skin rashes if touched.
In this article, we have covered all kinds of weeds with a yellow flower that you can commonly find in your yard. Going through this article, you will get to know which weed plant to keep and which to remove, and ways to get rid of the invasive weed plant.