If you’re like me, you’ve probably had a few battles with weeds. No matter how much you pull, spray, or plead with your garden, they always seem to come back—stronger and more determined than ever. I’ve spent hours on my hands and knees yanking out dandelions, only for them to pop up again two weeks later. Frustrating, right?
But then, I stumbled upon a revelation: certain plants can actually help control weeds naturally. It felt like a lightbulb moment. Why not let the plants do some of the hard work for me? These “weed-killing” plants can outcompete weeds, act as ground cover, and even suppress unwanted growth through their natural chemistry. After giving them a go, I’m convinced every gardener needs at least a few of these heroes in their arsenal.
Here are my top seven weed-killing plants and why they’re absolute must-haves for your garden.
1. Creeping Thyme
Ah, creeping thyme—my personal favourite. Not only is it beautiful with its tiny, aromatic leaves and purple blooms, but it’s also an absolute beast when it comes to crowding out weeds.
Why It Works
Creeping thyme forms a dense mat that leaves no room for weeds to sneak through. Plus, it’s drought-tolerant and thrives in poor soil, making it a dream for low-maintenance gardeners like me.
My Experience
I planted creeping thyme between the stones in my garden path, and it completely transformed the space. No more fiddling with weeds growing in awkward cracks—and it smells amazing when I walk on it.
2. Comfrey
Comfrey might not be the prettiest plant in the garden, but it’s an absolute workhorse. It grows quickly, creating a thick canopy that smothers weeds underneath.
Why It Works
Comfrey’s massive leaves block sunlight, which stops weeds from sprouting. As a bonus, its deep roots draw up nutrients from the soil, making it an excellent plant for composting or as a natural mulch.
My Tip
Plant comfrey in a spot where you don’t mind it spreading a bit—it’s enthusiastic, to say the least!
3. Hostas
If you’ve got a shady corner in your garden that’s constantly overrun with weeds, hostas are your new best friend. These leafy beauties are masters at weed suppression.
Why It Works
Hostas grow in dense clumps, shading the ground beneath them and starving weeds of light. Their thick, waxy leaves make them virtually indestructible to most garden pests, too.
My Experience
I planted hostas around the base of a tree in my back garden, where weeds used to run rampant. Now, it’s one of the prettiest spots in the yard, and I hardly ever have to weed it anymore.
4. Clover
Clover often gets a bad rap as a weed itself, but hear me out—it’s actually one of the best natural weed suppressors out there.
Why It Works
Clover forms a dense carpet that smothers weeds, and it’s a nitrogen-fixer, which means it enriches the soil for your other plants. I love how soft and lush it feels underfoot, almost like a mini lawn.
My Tip
If you’re replacing a patch of struggling grass, consider sowing clover instead. It’s tough, low-maintenance, and stays green even in dry weather.
5. Mint
Okay, I’ll admit it: mint has a bit of a reputation for being invasive. But if you plant it strategically, it can be a powerful ally in your war against weeds.
Why It Works
Mint spreads rapidly through underground runners, outpacing weeds and filling every nook and cranny with its fragrant foliage.
My Experience
I planted mint along a neglected garden border, and it’s completely taken over—in the best way. The weeds that used to thrive there don’t stand a chance. Just be sure to plant it in a contained area or use a pot if you want to keep it under control.
6. Lamb’s Ear
Lamb’s ear is one of those plants that’s as practical as it is pretty. Its silvery, velvety leaves look stunning in any garden, but it’s also a fantastic weed suppressor.
Why It Works
This perennial spreads out into thick, low-growing clumps, creating a barrier that weeds can’t penetrate. It’s especially great for sunny, dry spots where other plants struggle.
My Experience
I planted lamb’s ear in a sunny rock garden that used to be overrun with weeds, and it’s been a game-changer. Plus, it’s so soft—my kids love running their hands over it.
7. Sedum (Stonecrop)
Sedum is the ultimate low-maintenance plant for weed control. It thrives in poor soil, loves the sun, and requires almost no care once it’s established.
Why It Works
Sedum grows in thick mats that cover the ground, leaving no room for weeds to take root. Its fleshy leaves store water, so it’s perfect for dry, rocky areas where weeds might otherwise creep in.
My Tip
I’ve used sedum to fill in gaps around my patio, and it’s been an absolute lifesaver. No more weeding between the stones, and the little clusters of flowers are a delight in summer.
Why These Plants Are Game-Changers
When I first started using these plants to combat weeds, I wasn’t sure how much of a difference they’d make. But honestly, they’ve transformed my garden. Not only do they keep weeds in check, but they also add beauty and interest to spaces that were once dull and high-maintenance.
Now, instead of spending hours pulling weeds, I get to enjoy my garden the way I always imagined: relaxing with a cup of tea, surrounded by lush, thriving plants. If you’re tired of fighting a losing battle with weeds, give these plants a try. They’ve made all the difference for me, and I’m sure they’ll do the same for you.
Happy gardening!