If you've grown bamboo, you might have wondered about managing its spread. Controlling this plant is crucial for maintaining your garden, as traditional groundcovers often fail to contain it.
For those looking to plant bamboo in their backyard ideas, consider prevention methods right from the start. This proactive approach can save you from future headaches.
Bamboo can be a valuable addition when handled properly. Its rapid growth makes it perfect for creating privacy screens, thanks to its lush, evergreen foliage.
Moreover, bamboo is less appealing to animals. As noted by an expert, planting it can deter deer and other wildlife from invading your garden beds.
Ways to Stop Bamboo from Spreading
There are various strategies you can implement to manage bamboo's spread, from physical barriers to chemical solutions.
Bamboo features two growth types: clumping and running. Clumping varieties are easier to manage and can be contained with routine trimming. In contrast, running bamboo can extend its rhizomes underground up to 20 feet, posing more challenges.
Running rhizomes can infiltrate various structures, including driveways and patios. To protect your garden, it's essential to know how to control these plants effectively.
1. Install a Subsurface Barrier
One popular method to prevent bamboo from spreading is using a subsurface or root barrier. This technique is akin to planting bamboo in a pot buried underground, confining its roots and stopping runners from emerging.
Root barriers are typically made from high-density polyethylene, rolled out and buried deep around the plant. For best results, choose a barrier that's 24 to 30 inches deep and at least 60 mil thick.
Installing a root barrier is straightforward. Dig a trench around the bamboo, ensuring it's slightly shallower than the barrier height. For a 30-inch barrier, dig a 28-inch trench to keep some of the barrier above ground. If you're adding a barrier to an established plant, you'll need to cut any roots that have spread beyond your desired limit.
2. Sever the Rhizomes
Severing rhizomes, also known as root pruning, is an effective yet labor-intensive method. Use a spade to cut around the perimeter of the bamboo, overlapping your cuts to ensure roots are severed completely.
The challenge here is that this method only provides temporary relief. You may need to repeat it several times throughout the year to keep the bamboo in check.
3. Grow Bamboo in a Pot
Planting bamboo in a pot is the simplest way to control its spread. A pot holds the roots, preventing runners from reaching the soil. Bamboo is also a stunning addition to container gardening and can enhance patio designs as a natural screen.
However, keep the pot off the ground to avoid encouraging roots to escape through drainage holes.
4. Chemical Weed Killer – A Last Resort
When searching for ways to stop bamboo from spreading, you might encounter various weed killers. While effective, they can harm nearby plants and animals, so they should be used cautiously. Always try physical methods first before resorting to chemicals.
If other methods fail, weed killers can be a low-effort solution. Cut down unwanted shoots to ground level, then apply a glyphosate-based herbicide to the stumps. Cover them with a tarp, keeping pets and children away. This will effectively eliminate unwanted growth without harming the main plant.
How to Manage Neighboring Bamboo
To prevent your neighbor's bamboo from encroaching, suggest they install a physical barrier or pot their bamboo. If that's not feasible, you can manage runners that invade your property by cutting them at the root and removing any new plants.
How to Permanently Remove Bamboo
To permanently eradicate bamboo, pour boiling water over the exposed roots after cutting the plant close to the ground. Dig around the roots to expose them first. Dispose of any removed roots properly to prevent regrowth.
Alternatively, you can dig up the entire plant, ensuring all rhizomes are removed. This method requires significant effort and care to prevent any leftover roots from sprouting new runners.
