A Natural Solution to a Persistent Garden Problem

English ivy, often admired for its picturesque appeal, can become a relentless invader in gardens. Left unchecked, it rapidly climbs walls, spreads through borders, and suffocates smaller plants. Simply cutting it back rarely solves the problem, as established ivy regrows from rooted stems and leftover growth.

For those seeking a chemical-free alternative, solarisation offers a practical solution. This technique, championed by home and garden blogger Tara Besore, involves covering the ivy with thick, black plastic sheeting to block sunlight and starve the roots. Besore shared her success, noting that after “spending a summer getting nowhere with brute force,” she turned to this method, which “lets the sun scorch the ivy under plastic.” She emphasized that it works on “even the thickest ivy,” requires no back-breaking effort, and “doesn't require chemicals.”

Specialists at Piedmont Master Gardeners endorse the approach, explaining that a thick tarp or heavy plastic sheeting “can kill English ivy by blocking sunlight and depleting the energy stored in the roots.” However, they caution that the process is time-consuming, potentially taking one to two years to “fully wipe out the ivy's extensive root system.”

Steps to Implement Solarisation

The first step is to completely cover the ivy with thick, black plastic sheeting. This can be done using a single sheet or multiple layers, ensuring no gaps allow plants to push through. Beneath the sheeting, the ivy is deprived of water and subjected to heat, which ultimately kills the plant, its roots, and even seeds.

Securing the plastic is essential; stake it down or weigh it with heavy objects to prevent it from blowing away. Every few months, lift a corner to assess whether the ivy has died. Once the ivy is dead, you can remove it by cutting and pulling, mowing over the vines to break them up, or, for ivy on trees, cutting the vines around the base and digging out the roots.

A Word on Alternatives

While some gardeners turn to white vinegar as a natural remedy, it is not always permanent. Solarisation, despite its lengthy timeline, offers a more definitive solution for those willing to wait. As Besore’s experience shows, patience is key—but the result is a garden free of this tenacious climber without the use of chemicals.