Creeping bellflower is a common occurrence across lawns in Alberta. Originally it came from Europe but was then introduced to North America as a flower. However, unbeknownst to them, it soon started to spread rapidly and began to invade natural plant communities. Believe it or not, it’s actually still possible to buy creeping bellflower for your garden. The reviews, however, are peppered with warnings about the potential headaches this flower can cause down the road. If it isn’t under control, creeping bellflower can travel under fences, concrete, lawns, gardens and can easily spread from one neighbour to another. On top of that, it can survive a wide range of temperatures, including droughts and severe cold. It is also resistant to many chemicals, even those that are used to kill other kinds of noxious weeds.
For the first couple years the plant is well behaved and stays in place. However, after about the root grows about a foot deep into the soil. By the time you notice the problem it’s already too late. The creeping bellflower will be starting to make its way into your yard, sprouting in the grass. It has recently changed from a flower to a noxious weed that needs to be controlled in Alberta cities. Bylaw officers have started handing out warnings to residential and commercial residents when the weed begins to grow out of control in the neighbourhood.
This flower, or rather weed, doesn’t sleep. It thrives in wet and dry soils as well as sunny and wet weather. It spreads both by its root system or its leaves. Even a small shred of rhizome (root) is enough to produce up to 15,000 seeds. That can be incredible difficult to combat. The City of Calgary explicitly states once out of your property, the bellflower should be bagged and sent to the landfill. Do not compost it!
We have a five-step process on the most effective way to get rid of creeping bellflower. Depending on the stage of the creeping bellflower you may not be able to do it yourself, and you’d have to hire a professional to remove the weed.
This is specifically for the earliest stages of this plant. If you see any bellflower in areas that you didn’t plant, you should pull the flower immediately. This will prevent this plant from spreading seeds elsewhere. If you’ve completed this, continue to step number two.
The job isn’t finished after pulling the plant. The roots of this weed go down almost a foot and every part of it needs to be removed. If even a small piece of the root remains, you’ll see this plant re-emerge. Dig a six-inch radius around the center of the plant to get all the roots underneath. To prevent the bellflower from spreading, remove every part of the root.
It is an old but effective trick. It’s highly effective, in the early stages without using any chemicals.
Firstly, pull out the lawn mower and cut down any weed that is overgrown.
Once that’s done begin covering the area with 5 to 8 sheets of newspaper. Make sure that any area that you want killed is completely covered in newspaper; the more the better. You can use cardboard if you’d like but newspaper will break down faster.
Lightly wet the newspaper so that it won’t blow away and add 3 to 6 inches of an organic material. It can be mulch, grass clippings, coffee grinds, or topsoil.
Depending on the climate, it can take between 1 to 3 months for everything to decompose and the soil to be free of weeds. This process miraculously improves the soil and makes it ready to plant new flowers.
This is for when the weed is more far gone. There are many different products that can be used and purchased at a local hardware store. These options include Weed B Gon, Round Up or Concentrated Acetic Acid (Vinegar). Each of these would prevent the creeping bellflower from growing further. However, they will not eliminate the weeds since each is a residential grade product. It will only help to stop the spread.
Don’t lose hope. It took one homeowner four years of pulling the weed from his lawn until it finally disappeared. John Duncan is a horticulturist with Greengate Garden Centre. In his interview with the CBC, he talked about this weed taking over the gardens across Alberta.
“It’s a lot of pulling no matter what you do. And anytime you break the root, another plant will start. You just got to keep up on it… I know when I first bought my house, if I had realized that it was in my yard, I probably wouldn’t have bought it … It’s an aggressive plant. It took me four years of pulling to finally get it rid out of my yard.”
Because creeping bellflower is from Europe, it has no natural predators to control it here. When it’s put into nice garden soil it absolutely thrives – it doesn’t have to work hard at all.
To remove these plants with extra caution, dead head the flowers and cut off the seed heads. Do not compost bellflowers, they will survive. Bag them and put them in the garbage. Remember to completely remove the entire root. Be patient and persistent, it takes time to get rid of this plant.
There are some who have a completely overrun yard. I’ve seen multiple examples of homeowners who regret buying their houses because of a creeping bellflower infestation. If you’re prepared to kill your grass as well, RoundUp will kill the bellflower. This chemical spray will go right down into the roots from the top of the plant. However, it will take multiple reapplications to fully kill the roots.
When you’ve completely killed the creeping bellflower in your yard with the RoundUp, there will inevitably be dead grass as well. Depending on how far gone the problem is you may need to re sod which is quite an expensive process. Our company has saved numerous lawns from re sodding after a RoundUp application or something else they may have applied destroyed the grass. In one example, a homeowner took RoundUp to the dandelions in his lawn.