Pollinating Insects Flock to Common Garden Weeds Study 2026

Pollinating insects are increasingly drawn to common garden weeds such as ivy, hogweed, and bramble, according to an eight-year study by the UK Pollinator Monitoring Scheme. The research reveals that these often-overlooked plants are vital for supporting bees, butterflies, and other pollinators in urban and suburban areas.

The study, which involved citizen scientists conducting 10-minute flower surveys since 2017, found that ivy received an average of 22 insect visits per count, followed closely by hogweed with 20 visits. Other top performers included buddleia, bramble, knapweeds, and thistles, each averaging 14 visits. These findings challenge the common perception of weeds as undesirable and highlight their ecological importance.

Why Pollinating Insects Love These Plants

Pollinating insects are attracted to plants that offer abundant pollen and nectar. Ivy, for example, blooms in autumn when few other flowers are available, providing a crucial late-season food source. Hogweed and bramble also produce large quantities of nectar, making them highly attractive to a diverse range of insects.

Non-native buddleia, often called the butterfly bush, stands out for attracting four times as many butterflies and moths as other high-scoring flowers. This makes it a valuable addition to gardens aiming to support wildlife.

Top Plants for Pollinating Insects

These data underscore the importance of allowing these plants to grow, even in small urban gardens. Jo Milborrow of Butterfly Conservation notes that ivy is already recommended for breeding holly blue butterflies and feeding commas and red admirals. "The fact that this easy-to-grow native species is also the number one plant for pollinating insect visits is a fantastic discovery – we would recommend people to start growing ivy today!" she said.

How Gardeners Can Help Pollinating Insects

Gardeners can play a significant role in supporting pollinating insects by adopting wildlife-friendly practices. Simple changes can make a big difference.

• Allow weeds to bloom: Resist the urge to remove ivy, hogweed, or bramble; they are top pollinator plants.
• Plant buddleia: This non-native shrub is a magnet for butterflies and moths.
• Avoid pesticides: Chemicals harm pollinators; opt for natural pest control.
• Provide diverse blooms: Aim for a mix of flowers that bloom at different times to ensure a continuous food supply.
• Participate in citizen science: Join schemes like the UK Pollinator Monitoring Scheme to contribute to valuable research.

By making these small adjustments, gardeners can create havens for pollinating insects, which are essential for healthy ecosystems and food production.

FAQ

In conclusion, the study highlights the unexpected value of common garden weeds for pollinating insects. By embracing these plants, gardeners can contribute to pollinator conservation and enjoy a thriving garden ecosystem.