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weed yellow flower spiky seed taproot

Size: To 20 inches tall

Where It Grows: Sunny or shady landscape, lawn, or garden areas

Type: Broadleaf perennial

Dandelion

Where It Grows: Lawns and gardens in sun or shade

Appearance: This garden weed has light green leaves that look like clover and cup-shape yellow flowers in summer and fall.

Appearance: This common lawn weed has a strong taproot; leaves are deeply notched. Yellow flowers mature to puffballs. Dandelion seeds are like parachutes that fly away in the wind—they’re the plants that you would blow on and “make a wish” when you were younger.

Don’t let these pesky plants crash your garden party!

The following weeds—though not considered noxious—can still present a problem when they show up unwanted in gardens. However, weeds like lambsquarters or dandelions may actually be sought after for their nutritional content or benefit to pollinators, respectively.

Try to pull out this weed before it flowers!

5. Buckhorn Plantain (Plantago lanceolata)

If Canada thistle becomes rooted, the best control is to stress the plant and force it to use stored root nutrients. It’s at its weakest during the flowering stage in summertime; this is a good time to begin cultivation and destroy the roots and rootstock. One season of cultivation followed by a season of growing competitive crops such as winter rye, will go a long way toward eradication.

Bindweed can grow through many mulches so you need to use landscape fabrics such as polypropylene and polyester or mulches such as black plastic or cardboard but also ensure that the edges of the covering overlap so that the bindweed stems can’t find their way into the light. If holes are made in the fabric or plastic for plants, bindweed will grow through these holes. A landscape fabric placed over soil then covered with bark or other plant-derived product (e.g., organic matter) or rock will likely keep field bindweed from emerging. It might take more than 3 years of light exclusion before the bindweed dies. Once landscape fabric or other mulch is removed, new bindweed plants might germinate from seed in the soil; be sure to monitor the site for new seedlings.

No one likes to talk about weeds, but some plants compete with your garden for nutrients, water, and light, as well as harbor diseases and pests. Here are 13 of the most common weeds found in gardens and lawns—with weed identification pictures and tips on how to manage their growth.