How to eliminate the suckers of the trumpet vine

The trumpet vine (Campsis radicans), also known as trumpet creeper or cow itch vine, is a fast-growing and aggressive perennial vine popular for its vibrant trumpet-shaped flowers. While it can be a beautiful addition to any garden or landscape, it is essential to keep the vine in check as it can quickly become invasive and overpower other plants. One common issue faced by trumpet vine enthusiasts is the growth of unwanted suckers. These suckers can quickly take over an area and may require immediate attention for effective control. In this article, we will explore various methods to eliminate the suckers of the trumpet vine.

1. Pruning and Cutting:
Regular pruning is crucial to control the trumpet vine’s growth and minimize the appearance of suckers. Start by removing any damaged, diseased, or dead branches, as they can encourage sucker growth. Next, identify the suckers and carefully cut them as close to the base as possible, ideally at the point where they emerge from the main stem. Repeat this process throughout the growing season to stay ahead of sucker growth.

2. Applying Herbicides:
If the trumpet vine has grown extensively and manual removal of suckers becomes challenging, you may consider applying herbicides specifically designed for vine control. Glyphosate-based herbicides are often recommended for this purpose. Before applying any herbicide, carefully read and follow the instructions provided by the manufacturer. Take caution to protect nearby desirable vegetation as herbicides can be non-selective and harm other plants.

3. Digging and Excavating:
For trumpet vine suckers that have rooted deeply into the ground, digging and excavating may be required. Using a small garden shovel or trowel, locate the sucker’s base and dig around it to expose the roots. Once the roots are exposed, gently loosen the soil and carefully remove as much of the sucker and its root system as possible. For optimal success, make sure to remove all parts of the sucker and dispose of it properly to prevent re-growth.

4. Utilizing Barriers:
To prevent sucker growth from occurring or reoccurring in specific areas, installing barriers can be an effective method. Use sturdy materials such as plastic or metal edging, or even underground barriers to create a physical obstacle that prevents underground rhizomes from spreading and producing suckers. Regularly check the barriers for any signs of breakthrough and remove any suckers that manage to bypass them promptly.

5. Consistent Maintenance:
Regular maintenance is key to keeping trumpet vine suckers under control. By practicing good garden hygiene, including removing fallen leaves and cleaning up clippings, you reduce the chances of suckers taking root and multiplying. It is also advisable to monitor your trumpet vine closely, promptly identifying and addressing any signs of sucker growth before it becomes unmanageable.

In conclusion, the trumpet vine is a beautiful plant, but its propensity for sucker growth can be an ongoing challenge for gardeners. By employing a combination of pruning, cutting, herbicides, digging, barriers, and consistent maintenance, you can effectively eliminate the suckers of the trumpet vine and enjoy a more controlled and harmonious garden or landscape. Remember, persistence is key, as continuous monitoring and action are necessary to keep your trumpet vine thriving while keeping the suckers at bay.