The concept of using gorse as a nurse crop for regenerating native plants has been gaining traction lately. Inspired by Hugh Wilson's work at Hinewai Reserve in Akaroa, where gorse is used to aid native regeneration, many people are considering this approach. But is it really the best choice for your property?
The Case for Gorse as a Nurse Crop
At Hinewai Reserve, gorse has been used successfully to foster the growth of native species. Over time, native trees like Mahoe have started to thrive under the canopy of gorse. This method does work, but there are some significant considerations to keep in mind:
Long-Term Presence: Even 30 years into the process, you'll still see gorse flowering. If you're willing to wait 20, 30, or even 50 years, you might eventually see a full reversion to native species, provided there are enough fruiting plants to support this transition.
Visual Impact: Gorse is not the most visually appealing plant. If the sight of gorse on your property for several decades is acceptable to you, this might be an option.
Potential Downsides
While gorse can serve as a nurse crop, there are several downsides to consider:
Spread of Gorse: Gorse is highly invasive and can spread to other areas of your property or neighbouring lands, creating a bigger problem.
Competition from Other Weeds: Alongside gorse, other climbing weeds like blackberry might take root, complicating your efforts to establish native plants.
Our Recommendation
Based on our experience, we don't recommend using gorse as a nurse crop. Instead, we suggest a more proactive approach:
Eliminate Gorse: Start by thoroughly spraying out gorse to clear the area.
Plant your Natives: Once the gorse is removed, plant a variety of native species. These plants will establish quickly and effectively, often outpacing any returning gorse seedlings.
Regular Maintenance: Continue to maintain the area, controlling any new gorse growth and ensuring the health of your native plants.
While gorse can function as a nurse crop, its long-term presence and the potential spread make it less desirable. By removing gorse and directly planting native species, you'll achieve a faster and more aesthetically pleasing regeneration of your land. Focus on proactive management to create a thriving native ecosystem without the prolonged presence of gorse.
