25 Common Types of Weeds & How to Get Rid of Them

Weeds are the uninvited guests at your garden party. While they can sometimes protect soil or attract pollinators, they usually arrive to steal nutrients, hoard sunlight, and invite pests. Before you know it, they take up the vital space your prized plants need to thrive.

However, not all wild plants are villains. We have compiled a list of 25 common types of weeds to help you identify the culprits, understand their impact, and decide whether to pull them or let them be. Here is everything you need to know to take back control of your yard.

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Type of Weeds

Below are 25 common types of weeds along with insightful information to help you identify the plant and control it effectively.

1. Bindweed

• Botanical Name: Calystegia sepium or Convolvulus arvensis
• Height: Up to 6.5 feet ⁽¹⁾
• Classification: Perennial
• Toxic: Yes

Bindweed might look pretty with its trumpet-shaped flowers and climbing vines, but do not be fooled. These weeds smother other plants and are notoriously difficult to remove.

Because the roots reach deeply into the ground, bindweed can survive for years. It flourishes in late spring and summer, spreading aggressively in warmer weather. Unfortunately, it isn’t picky and will grow in almost all soil types.

To remove bindweed, you must act before it gets out of control. If the buds are already formed, try applying a systemic weed killer to the foliage. The chemicals need to travel down to the roots to kill the plant entirely.

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2. Dandelion

• Botanical Name: Taraxacum officinale
• Height: Up to 18 inches ⁽²⁾
• Classification: Perennial
• Toxic: Only in large amounts

Dandelions are perhaps the most recognizable garden weed. They transform from a cheerful yellow flower into a white, fluffy seed ball. While they are vital for bees early in the season and generally harmless, they can ruin the look of a manicured lawn.

If you want to remove them, act fast. The seeds disperse with the wind, meaning a neighbor’s dandelion problem can quickly become your problem.

Using a mulcher is an effective way to control growth. If digging them out, ensure you remove the entire taproot. If you snap the root, the plant will simply grow back.

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3. Poison Sumac

• Botanical Name: Toxicodendron vernix
• Height: Up to 20 feet ⁽³⁾
• Classification: Perennial
• Toxic: Yes, highly irritating

Poison sumac is a woody shrub or small tree that typically grows in swampy areas near cinnamon ferns and cattails. Like its cousin poison ivy, every part of the plant contains urushiol, an oil that causes severe, blistering rashes.

Unlike poison ivy, it does not trail on the ground or climb trees. You can identify it by its reddish stems, long leaflets arranged in a V-shape, and clusters of yellow-green flowers ⁽⁴⁾.

Do not be fooled by the white berries or beautiful autumn foliage. This is a dangerous plant that requires protective gear to remove.

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4. Chickweed

• Botanical Name: Stellaria media L. or Alsine media
• Height: 2 to 20 inches ⁽⁵⁾
• Classification: Annual
• Toxic: Yes (contains saponins)

Chickweed is an annual winter plant that spreads rapidly and boasts a surprisingly long root system. It is one of the most common garden weeds, easily identified by its low mat-like growth and tiny white star-shaped flowers.

It thrives in cool, wet areas and loves nitrogen-rich soil. It is a nuisance because a single plant can produce hundreds of seeds, which can remain dormant in the soil for years.

The main issue with chickweed is that it can harbor viruses that damage crop plants. You will want to pull this one early before it flowers.

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5. Green Alkanet

• Botanical Name: Pentaglottis sempervirens
• Height: 12 to 23 inches ⁽⁶⁾
• Classification: Perennial
• Toxic: No

Green Alkanet looks charming with its blue flowers, but in damp, shady yards, it quickly becomes an invasive weed. It is highly attractive to bees but can overtake a garden if left unchecked. It thrives in alkaline soils and damp corners.

The plant self-seeds and regenerates aggressively. It features a deep, brittle perennial taproot. If you try to pull it and the root snaps, it will regenerate. The best removal method is digging deep to get the whole root system, followed by a thick layer of mulch to block new seedlings.

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6. Oxalis

• Botanical Name: Oxalis corniculata
• Height: Up to 20 inches ⁽⁷⁾
• Classification: Perennial
• Toxic: Only in large amounts

Oxalis, or wood sorrel, looks like clover but features small yellow flowers. While some gardeners plant specific varieties as ground cover, the wild version is a persistent pest. It grows in lawns and garden beds regardless of sun or shade exposure.

Managing Oxalis is difficult because it spreads via seed pods that explode when touched, launching seeds several feet away. The best control method is mulching in spring to prevent germination.

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7. Quackgrass

• Botanical Name: Elytrigia repens
• Height: Up to 4 feet ⁽⁸⁾
• Classification: Perennial
• Toxic: No

Quackgrass is a persistent, creeping grass that produces seeds and spreads via aggressive underground stems called rhizomes. It forms a heavy mat in the soil, choking out other plants to make room for new shoots.

If you are trying to get rid of quackgrass, you must be thorough. Dig out the grass as soon as you spot it, ensuring you get every piece of the root. Even a small leftover piece of rhizome can regenerate a new plant. Do not compost these roots; throw them in the trash.

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8. Daisy

• Botanical Name: Bellis perennis
• Height: Up to 2 feet ⁽⁹⁾
• Classification: Perennial
• Toxic: Toxic to children if eaten

Daisies are technically weeds, even though many people enjoy their cheerful appearance. They are common in yards and can withstand heavy foot traffic. However, they compete with your lawn for resources.

If you want to get rid of weeds like daisies, you can use a dedicated weeding tool to pop them out of the ground. Since they grow in a rosette shape, they are relatively easy to target with spot treatments or vinegar sprays on a sunny day.

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9. Japanese Knotweed

• Botanical Name: Polygonum cuspidatum
• Height: Up to 7 feet ⁽¹⁰⁾
• Classification: Perennial
• Toxic: No

Japanese knotweed is an aggressive, invasive weed that resembles bamboo. It dies back in winter but shoots up rapidly in early summer, reaching heights of seven feet. It can grow through concrete, damaging foundations and paving.

This is not a DIY removal job. In many places, it is classified as controlled waste, and improper disposal is illegal. You will likely need to contact a specialist contractor to treat and remove Japanese knotweed safely.

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10. Canada Thistle

• Botanical Name: Cirsium arvense
• Height: Up to 4 feet ⁽¹¹⁾
• Classification: Perennial
• Toxic: Yes (prickly nature can cause injury)

Despite its name, this prickly weed is found throughout the US. It is an invasive plant that crowds out native species and consumes resources in wet meadows and dry fields alike.

These plants spread through an extensive root system and wind-blown seeds. They are incredibly resilient. To remove them, you need a combination of persistence, digging, and targeted herbicides. Simply cutting them down usually encourages the roots to sprout new stems.

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11. Crabgrass

• Botanical Name: Digitaria spp.
• Height: Up to 2 feet ⁽¹²⁾
• Classification: Annual
• Toxic: No

Crabgrass is a summer annual that grows low to the ground in a star-like pattern. It thrives in hot, dry weather when your actual lawn grass might be struggling. It dies off with the first frost, but not before dropping thousands of seeds.

To control it, apply a pre-emergent herbicide in early spring before the soil temperature reaches 55 degrees Fahrenheit. A thick, healthy lawn is also the best defense against crabgrass taking over.

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12. Nutsedge

• Botanical Name: Cyperus spp.
• Height: Up to 3 feet ⁽¹³⁾
• Classification: Perennial
• Toxic: No

Nutsedge, or nutgrass, looks like grass but is actually a sedge. You can identify it by its triangular stem (remember the phrase “sedges have edges”) and its lighter, lime-green color compared to turf.

This weed is difficult to manage because it produces small tubers, or “nutlets,” on its roots. If you pull the plant, the nutlets often break off and stay in the soil to sprout new plants. Chemical control specifically designed for sedges is usually required.

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13. Creeping Speedwell

• Botanical Name: Veronica filiformis
• Height: 1-2 inches ⁽¹⁴⁾
• Classification: Perennial
• Toxic: No

Creeping speedwell is a low-growing weed with tiny, scalloped leaves and pretty blue or purple flowers. It forms a dense mat in lawns, often thriving in shaded areas where grass struggles to grow.

While some homeowners use it as ground cover, it can easily invade a lawn. Improving your soil drainage and letting more sunlight onto the lawn helps discourage it. For removal, iron-based herbicides are often effective.

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14. Plantain Plants

• Botanical Name: Plantago major
• Height: Up to 16 inches ⁽¹⁵⁾
• Classification: Perennial
• Toxic: No

Broadleaf plantain is a weed you might want to keep. It was originally brought to North America for medicinal purposes ⁽¹⁶⁾. It is often found in compacted soil, often along driveways or trodden paths.

The leaves are edible and can be used in salads or cooked like spinach. Externally, a poultice of crushed leaves helps soothe insect bites and bee stings.

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15. Common Ragweed

• Botanical Name: Ambrosia artemisiifolia
• Height: Up to 3 feet ⁽¹⁷⁾
• Classification: Annual
• Toxic: No, but causes severe allergies

If you suffer from seasonal allergies, ragweed is likely your enemy. In late summer and fall, this weed releases billions of pollen grains that trigger hay fever (allergies).

To identify it, look for fern-like, feathery leaves and spikes of small yellow-green flowers. It grows tall and thrives in poor soil. Mowing it down before it flowers is the best way to prevent the pollen storm.

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16. White Clover

• Botanical Name: Trifolium repens
• Height: 6-12 inches ⁽¹⁸⁾
• Classification: Perennial
• Toxic: No

White clover is common in lawns and features three-leaflet stems with white flower clusters. It is actually beneficial; as a legume, it pulls nitrogen from the air and fixes it into the soil, acting as a natural fertilizer.

Bees also love clover. However, if you prefer a uniform grass lawn, you can control it with broadleaf herbicides. In our opinion, keeping clover is often a smart move for a lower-maintenance, eco-friendly yard.

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17. Buckhorn Plantain

• Botanical Name: Plantago lanceolata
• Height: 3 inches to 2.5 feet ⁽¹⁹⁾
• Classification: Perennial
• Toxic: No

Buckhorn plantain, also called English plantain, has narrower leaves than the broadleaf variety. It is common in pastures and lawns, particularly where the soil is poor and compacted.

The best removal method is hand-pulling young plants, ensuring the taproot comes with them. Aerating your lawn to relieve soil compaction can also help discourage this weed from returning.

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18. Broad-Leaved Dock

• Botanical Name: Rumex obtusifolius
• Height: Up to 5 feet ⁽²⁰⁾
• Classification: Perennial
• Toxic: No, but high oxalate content

Broad-leaved dock is a tall plant with large leaves and a massive taproot. It is frequently found near stinging nettles. Folklore suggests that rubbing dock leaves on a nettle sting can soothe the pain, which is convenient since they grow together.

Because of the deep taproot, simply pulling the top off will not work. You need a spade to dig out the entire root system. If you leave even a few inches of root, it will regenerate.

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19. Ground Ivy

• Botanical Name: Glechoma hederacea
• Height: 12-20 inches ⁽²¹⁾
• Classification: Perennial
• Toxic: Toxic to horses

Also known as Creeping Charlie, ground ivy is a member of the mint family. You can identify it by its square stems, scalloped leaves, and distinct minty smell when crushed. It forms a dense carpet that chokes out grass.

To remove it, hand-pull the vines after rainfall when the soil is loose. Trace the vine back to the central root node and pull gently. Borax solutions were once recommended, but they can damage the soil, so stick to manual removal or chelated iron herbicides.

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20. Foxtail

• Botanical Name: Alopecurus spp.
• Height: 1 to 3 feet ⁽²²⁾
• Classification: Annual
• Toxic: Physical danger to dogs

Foxtail is a grassy weed named for its fluffy seed head. It thrives in disturbed soil, roadsides, and neglected lawns.

The real danger of foxtail lies in the dried seed heads. These barbed seeds can burrow into the skin, ears, and noses of dogs, leading to severe infections or even death ⁽²³⁾. If you have pets, remove foxtails immediately before they dry out and seed.

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21. Lamb’s Quarter

• Botanical Name: Chenopodium album
• Height: Up to 5 feet ⁽²⁴⁾
• Classification: Annual
• Toxic: Can be toxic to sheep/cattle in large amounts

Lamb’s Quarter is a fast-growing weed with diamond-shaped leaves that have a white, powdery coating on the underside. It sucks moisture out of the soil, making it a competitor for your vegetable garden.

However, it is a highly nutritious wild edible, often called “wild spinach.” It can be cooked and eaten just like spinach ⁽²⁵⁾. If you want it gone, use a sharp garden hoe to slice it off at the soil line while it is young.

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22. Purslane

• Botanical Name: Portulaca oleracea
• Height: 3-9 inches ⁽²⁶⁾
• Classification: Annual
• Toxic: Toxic to cats

Purslane is a succulent weed that hugs the ground. It is incredibly hardy and can survive drought conditions that kill other plants. It is also a nutritional powerhouse, boasting more Omega-3 fatty acids than almost any other leafy vegetable ⁽²⁷⁾.

It reproduces aggressively; a single plant can drop 240,000 seeds. Even a small piece of stem left on the soil can root and regrow. If you weed it, bag it up and throw it away, do not leave it on the dirt.

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23. Groundsel

• Botanical Name: Senecio vulgaris
• Height: Up to 2 feet ⁽²⁸⁾
• Classification: Annual
• Toxic: Yes, causes liver damage

Groundsel is a common weed in nurseries and gardens. It has clusters of small yellow flowers that turn into fluffy white seed heads, similar to a dandelion.

The main issue is toxicity. It contains pyrrolizidine alkaloids, which cause irreversible liver damage in livestock and humans if ingested ⁽²⁹⁾. Wear gloves when pulling this weed, and ensure it does not mix with any edible crops.

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24. Stinging Nettle

• Botanical Name: Urtica dioica
• Height: Up to 4 feet ⁽³⁰⁾
• Classification: Perennial
• Toxic: Irritant

Stinging nettle is infamous for the painful, burning sensation it causes when brushed against. The leaves are covered in tiny, hollow hairs that act like hypodermic needles injecting formic acid.

Despite the pain, nettle is a superfood. Once cooked or dried, the sting is neutralized, and the plant becomes rich in vitamins and minerals ⁽³¹⁾. Nettle tea is a popular remedy for allergies. To remove it, always wear thick leather gloves and long sleeves.

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25. Dayflower

• Botanical Name: Commelina spp.
• Height: 1 to 3 feet ⁽³²⁾
• Classification: Annual
• Toxic: No

The Asiatic dayflower is often mistaken for a grass until it blooms with distinct, bright blue flowers. Each flower lasts only for a single day, hence the name. It grows in sunny and shady areas and tolerates wet soil well.

It is resistant to many common herbicides like glyphosate. Mulching is the best prevention method, as it blocks the light the seeds need to germinate. If pulling by hand, be thorough, as it can root from broken stems.

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How to Prevent Weeds from Taking Over

There is no magic wand to banish weeds forever, but you can make your yard a fortress against them. Here are the most effective ways to stop the invasion:

• Mulch heavily: Applying a 2-3 inch layer of mulch deprives weed seeds of sunlight. If they can’t see the sun, they usually won’t sprout. Organic mulch also improves soil health as it breaks down.
• Cultivate sparingly: Every time you till or dig up the soil, you bring dormant weed seeds to the surface where they can germinate. Only dig when necessary to keep those sleeping seeds buried.
• Plant cover crops: Bare soil is an open invitation for weeds. Plant cover crops like clover or rye in empty beds to outcompete weeds for space and nutrients.
• Weed when wet: Pulling weeds is easiest after a heavy rain. The soil is loose, meaning you are more likely to get the entire root system out rather than snapping it off.
• Deadhead flowers: If you can’t pull the weed out immediately, at least cut off the flower head. This prevents the plant from dropping seeds and multiplying your problem for next year.
• Use pre-emergents: A pre-emergent herbicide creates a chemical barrier that stops seeds from germinating. This is highly effective for annual weeds like crabgrass but must be applied in early spring.
• Mow high: set your lawn mower blade to a higher setting. Taller grass shades the soil, keeping it cool and blocking sunlight from reaching weed seeds.

FAQs

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