You've been keeping up with mowing and watering. And yet… something is definitely growing out there that doesn't belong.
Summer is prime time for unwanted plants in Kansas City, and they don't limit themselves to the lawn. Garden beds, fence lines, shrubs, and the edges of your property are all fair game. Some of these are "weeds" you can pull and be done with. Others are vines and trees that will quietly take over everything if you don’t keep them in check.
Here's a rundown of what's most likely showing up in KC yards right now, and how to handle it.
In the Lawn and Garden Beds
Crabgrass
What it looks like: Light green, coarse blades that spread outward in a star or crab shape from a central point. Lies low to the ground and looks noticeably different from the turf around it.
When it shows up: Germinates in late spring when soil temperatures warm up, and becomes very visible by midsummer. Loves bare spots, thin turf, and edges along driveways and sidewalks.
Why it matters: Crabgrass is an annual, so it dies with the first frost — but not before it drops thousands of seeds that will be back next year. The more summers it goes unaddressed, the bigger the problem gets.
What to do: Pre-emergent herbicide in early spring (before soil temps hit 55°F) is the most effective prevention. Mid-summer, post-emergent products can slow it down, and keeping the lawn thick and mowed at the right height helps crowd it out long-term.
Nutsedge (Yellow Nutsedge)
What it looks like: Tall, bright green, and waxy, it grows noticeably faster than the grass around it and sticks up above your lawn within days of mowing. Triangular stems and a distinctive v-shaped blade.
Why it's tricky: Nutsedge isn't actually a weed in the traditional sense. It's a sedge, which means standard broadleaf weed killers won't touch it. It needs a specialized product to control it, and it thrives in wet or poorly drained areas.
What to do: Improve drainage if possible. Say a prayer? Pulling it by hand is mostly futile, since the underground nutlets it grows from just produce more plants.
Spotted Spurge
What it looks like: Low-growing and mat-forming, with small oval leaves that often have a reddish-purple spot in the center. Spreads outward from a central point and can cover a surprising amount of ground quickly. When it breaks, it produces a milky sap. Be sure and wash your hands after handling it.
Where it shows up: Everywhere… but especially in garden beds, along sidewalk edges, and anywhere soil is bare or disturbed. Spurge loves the gaps between mulch and the cracks along pavement. You can almost always find it growing near purslane, an edible lookalike.
What to do: Pull it before it sets seed. It can produce thousands of seeds per plant, so the sooner the better. Young plants come out easily; mature mats are more work. Keeping beds well-mulched reduces the bare soil spurge needs to get started.
Broadleaf and Narrowleaf Plantain
What they look like: Both grow in low rosettes close to the ground. Both produce a central seed stalk. Broadleaf plantain has wide, oval, gray-green leaves with prominent parallel veins and a wavy edge. It looks almost like it belongs in a garden. Narrowleaf plantain has long, slim leaves and sends up a slender spike with a tight cluster of tiny flowers. Lots of times, Narrowleaf plantain is what makes a yard look tall, even if the grass isn't that high. They are both edible.
Where they show up: Compacted soil is their sweet spot… along pathways, in high-traffic areas of the lawn, and in thin turf. If you're seeing a lot of plantain, it's often a sign the ground beneath it needs aeration.
What to do: Hand-pull before they seed out. Improving compaction through fall aeration will help reduce their foothold over time.
White Clover
What it looks like: Three rounded leaflets, usually bright green with a faint white chevron marking, and small white or pink ball-shaped flowers. Spreads by creeping stems and seed, preferring thin or low-nitrogen turf.
Is it actually bad? That depends on your priorities. Clover fixes nitrogen and pollinators love the flowers. But it spreads aggressively into weak spots and can take over quickly in a lawn that's struggling.
What to do: Pull it by hand or dig it out, especially before it seeds. Keeping the lawn thick and well-fed discourages it from moving in.
Carolina Horsenettle
What it looks like: A perennial that can grow up to two feet tall, with dark green, lobed leaves that somewhat resemble red oak leaves. The stems and leaf midribs have sharp yellow prickles which you'll notice immediately if you try to pull one barehanded. Produces white to purple star-shaped flowers from May through October, followed by small berries that turn yellow when ripe, like tiny tomatoes. The berries are toxic.
Why it's stubborn: Horsenettle grows from an extensive root system that can reach deep into the soil. Pull the top and it comes back. Consistent removal of new growth over multiple seasons is the most realistic approach without chemicals.
What to do: Wear gloves, because the prickles are sharp! Cut or dig it repeatedly throughout the season to exhaust the root reserves. Catching it young before it establishes deep roots is much easier than dealing with a mature plant.
Groundcovers That Overstay Their Welcome
Vinca (Periwinkle / Creeping Myrtle)
What it looks like: A low, mat-forming groundcover with glossy, dark green oval leaves and small lavender-blue flowers in spring. It spreads by trailing stems that root wherever they touch the soil, forming a dense, tangled mat over time.
Why it's a problem: Vinca was widely sold and planted as a tidy, low-maintenance groundcover… and plenty of KC homeowners inherited it along with their house. The Missouri Department of Conservation considers it potentially invasive and no longer recommends planting it, because it outcompetes native plants and spreads readily beyond its intended area.
Where it causes trouble: Shaded areas under trees and along fence lines are prime vinca territory. Once established, it forms a thick mat that smothers everything beneath it, including desired plants.
What to do: Small patches can be hand-pulled, but get the roots and underground runners, because any stem left in contact with the soil will resprout. For larger areas, cut it back as close to the ground as possible, then smother with thick cardboard and wood chip mulch. This takes persistence; vinca does not give up easily.
The Climbers and Vines
This is where Kansas City yards really get complicated in summer.
Several aggressive vines thrive in the KC area, and they all share one trait: if you ignore them for a season, you'll spend multiple seasons paying for it.
Greenbrier (Smilax)
What it looks like: Starts out as a deceptively tidy vine with glossy, heart-shaped green leaves and coiled tendrils… easy to mistake for ivy or a young morning glory. Don't be fooled. Greenbrier is a woody perennial vine armed with sharp prickles that turn black with age, and it can climb 20 to 40 feet if left unchecked. Produces blue-black berries in late summer that birds love… and spread.
Why it's such a problem: Birds eat the berries and drop seeds across the yard and neighborhood. The root system stores energy in large tuberous roots, meaning cut vines regrow readily. Once greenbrier gets established in a fence line or shrub bed, it forms dense, thorny thickets that become very difficult to work through.
What to do: Get it while it's young. Small plants can be dug out with the root. Established plants require persistent cutting back over multiple seasons to exhaust the root. Gloves and long sleeves are non-negotiable.
Japanese Honeysuckle
What it looks like: A semi-evergreen woody vine that often holds its leaves through winter. Opposite, oval leaves that can be lobed when young. Produces paired, tubular, fragrant flowers in May and June: white or pink at first, turning creamy yellow as they age. Small glossy black berries follow in fall. The vine trails along the ground, forms dense mats, and climbs aggressively over shrubs and into tree canopies.
Why it matters: Japanese honeysuckle is a non-native invasive throughout Missouri. It was introduced as an ornamental and has spread widely, in part because birds eat the berries and distribute the seeds. It can completely cover and smother understory plants, and it's particularly hard to eliminate once established because it spreads by both seed and underground rhizomes. The Missouri legislature passed a ban on its sale in 2025.
What to do: Cut vines back repeatedly throughout the growing season to exhaust the plant. Pulling by hand works for young vines. For established tangles on fences or trees, cut at the base, unwind and remove as much material as possible, then follow up on any regrowth consistently.
Wild Autumn Clematis (aka Sweet Autumn Clematis)
What it looks like: A non-native invasive perennial vine with opposite, compound leaves — five to seven oval or heart-shaped leaflets with smooth (not toothed) edges. In late summer it produces dense clusters of small, sweet-smelling white flowers that look almost decorative and smell divine. Then it sets seed: fluffy, feathery masses that catch the wind and spread everywhere.
Why it's a problem: This one looks intentional right up until it's too late. It climbs rapidly over any support (fences, shrubs, trees) and spreads along the ground in dense mats that smother what's underneath. Once those seeds fly, you'll be dealing with it in new spots next year.
What to do: Pull or cut vines before they flower, and especially before seed set. The elongated leaf stems curl around supports and hold tight, so cutting at the base and then unwinding is often the most practical approach. Consistent removal over multiple seasons is needed to get ahead of it.
Honeyvine Milkweed (aka Sand Vine or Climbing Milkweed)
What it looks like: A perennial vine with glossy, heart-shaped leaves and a twining habit that lets it climb fences, shrubs, and neighboring plants quickly. Honeyvine Milkweed produces clusters of small, fragrant white flowers in summer. Related to milkweed and a host plant for monarch butterfly and tussock moth larvae… which gives some people pause about removing it. Unlike most milkweeds, it has clear (not milky) sap. In late season it produces large, tapering seed pods that split open to release seeds on silky white threads.
Why it's a problem in yards: Honeyvine milkweed is common across Missouri and grows aggressively. It establishes a complex, deep root system that's difficult to fully remove, and its wind-borne seeds can land anywhere. Left alone, it will cover a fence or shrub in a season (unless the caterpillars get to it first!).
What to do: Cut it back consistently throughout summer before seed pods form. The deep root system means it will return, so this is an ongoing management job rather than a one-time pull. If you want to support monarchs, a contained milkweed planting elsewhere in the yard is a better option than letting sand vine run.
Field Bindweed
What it looks like: A creeping and twining vine with small, arrow-shaped leaves and funnel-shaped flowers in white or pale pink. Field Bindweed (sometimes just Bindweed for short) looks like a tiny morning glory and runs along the ground or winds its way up anything it can reach, including other plants, garden stakes, and fence wire.
Why it's persistent: Field bindweed is one of the harder weeds to get ahead of. It spreads both by seed and by a deep, branching root system, and the roots can survive in the soil for years. Pull the top and the roots push up new growth.
What to do: Consistent removal of top growth is the main tool without chemicals. The goal is to starve the root system by not letting the plant photosynthesize. It takes sustained effort over multiple seasons to see real results. Smothering with thick mulch helps in beds.
Trumpet CREEPER
What it looks like: Trumpet Creeper is a quickly growing, very agressive native woody vine with stems that become woody with age. In the summertime, it has long, orange tubular flowers.
Why it's persistent: Trumpet Creeper spreads both by seed and by a deep, branching root system, and the roots can survive in the soil for years. Trumpet Creeper can be extremely destructive to structures like homes, garages, and fences.
What to do: While this plant is almost impossible to eradicate completely, if you can dig up as much of you can and constantly trim/mow it, you will be doing good to keep it under control.
Shrubs and Trees You Didn't Plant
Amur Honeysuckle (AKA Bush Honeysuckle)
What it looks like: A large, upright, spreading shrub (not a vine) that can reach 15 to 20 feet tall at maturity. Opposite leaves, one to three inches long, narrowly oval with a pointed tip. Produces paired white flowers that fade to yellow in late spring, followed by bright red berries in fall. Grayish-brown bark with vertical grooves. In KC it's sometimes called "bush honeysuckle" and was widely planted for decades before its invasive nature became obvious.
Why it's such a problem in Kansas City: Amur honeysuckle is one of the most aggressively invasive shrubs in the KC area — the USGS has documented its spread throughout the Blue River basin specifically. It leafs out earlier in spring and holds its leaves later in fall than native plants, giving it a competitive advantage that shades out everything beneath it. Birds eat the berries and spread seeds widely. A single unmanaged shrub can seed an entire fence line in a few years.
What to do: Small plants can be pulled by hand or dug out. For larger shrubs, cut to the base and remove the stump: regrowth is common and will need to be cut back repeatedly. Getting it while it's small is significantly easier than dealing with a mature plant. If you have several established bushes, plan for a multi-season removal effort.
White Mulberry
What it looks like: Serrated, lobed leaves that can vary a lot in shape even on the same plant: some heart-shaped, some mitten-shaped, some multi-lobed. Young White Mulberry trees have smooth bark that becomes more ridged and furrowed with age. If a mulberry appeared on its own in your yard (along a fence, in a garden bed, from a crack in the pavement) it's almost certainly white mulberry, the invasive species introduced from Asia, rather than the native red mulberry.
Why it shows up everywhere: Birds eat the berries and drop seeds all over the yard, the neighbor's yard, the alley, fence lines, and garden beds. White mulberry can produce seeds when the tree is only a few inches tall, which is part of why it's so hard to get ahead of. A mature tree nearby means a steady supply of seedlings every spring and summer.
What to do: Pull or dig seedlings as soon as you spot them. They come out easily when young and soil is moist. The longer they grow, the deeper the roots go and the harder the removal. Check fence lines and bed edges regularly through summer. Established trees require stump removal to prevent resprouting.
Siberian Elm
What it looks like: The leaves of Siberian Elm are alternate, simple, 1–2 inches long, edges evenly, with teeth that are all the same sie. Baby Siberian Elms are very slender, flexible, greenish-brown and hairy when young, turning brown to gray and smooth with age, drooping.
Why it shows up everywhere: This tree spreads aggressively through thousands of flat, winged seeds called samaras. Wind carries these seeds long distances in early spring (usually April and May), allowing rapid seedling growth in open, sunny, or disturbed soils. Water, animals, and vehicle undercarriages also help transport the seeds to new areas.
What to do: Pull or dig seedlings as soon as you spot them. They come out easily when young and soil is moist. The longer they grow, the deeper the roots go and the harder the removal.
The Bigger Picture
Most of what shows up uninvited in Kansas City yards has one thing in common: it's better at surviving stress than your lawn or garden plants are. Bare soil, thin turf, compaction, and neglected edges all create the openings these plants exploit.
Consistent maintenance (mowing at the right height, keeping beds mulched, and catching vines early) is the most effective long-term strategy. The plants listed here all get significantly harder to manage the longer they're left alone.
If your yard has gotten ahead of you (overgrown areas, established vines on fences, debris piling up), that's exactly what Green Rooster KC is here for.
We handle cleanup, brush and debris haul-off, trimming, and regular maintenance across the Kansas City area. Contact us for a free estimate.