Plant one flower in your garden in April to attract butterflies

Gardeners are being encouraged to make a simple change this April that could have a big impact on local wildlife, by planting just one flower known to attract butterflies in large numbers.

Experts say adding nectar-rich plants to your garden is one of the easiest ways to support struggling butterfly populations, and one species in particular stands out as a reliable favourite: Buddleja. Often referred to as the "butterfly bush", buddleja is famed for its ability to draw in a wide range of butterfly species thanks to its fragrant, nectar-packed flowers. Its long, cone-shaped blooms provide a vital food source throughout the warmer months, making it a popular choice among both beginner and experienced gardeners.

April is considered the ideal time to plant buddleja or prune existing shrubs.

Gardeners who cut back established plants now can actually delay flowering slightly, a useful technique that ensures nectar is available later in the season when butterflies are preparing for hibernation and food sources become scarcer.

One standout variety is Buddleja davidii 'Black Knight', which produces deep purple flowers and is particularly attractive to pollinators. Its rich colour and strong scent make it a striking addition to any garden, while also serving a practical purpose for wildlife.

Because buddleja flowers over a long period, it acts as a dependable "all-rounder" plant, supporting butterflies from early summer through to autumn. This extended flowering window is especially important at a time when natural habitats are shrinking and consistent food sources are harder to find.

However, experts also urge caution when choosing which variety to plant. Some types of buddleja can spread aggressively and may become invasive if not properly managed. Gardeners are advised to research carefully or opt for sterile, non-invasive cultivars that are better suited to controlled garden environments.

Wildlife organisations say even small gardens or urban spaces can make a difference. A single well-chosen plant can create a mini sanctuary for butterflies, helping to boost biodiversity and support declining species.

With butterfly numbers under pressure due to climate change, pesticide use and habitat loss, simple steps like planting buddleja can play an important role in conservation efforts.

For those looking to brighten up their outdoor space while supporting nature, experts say there are few easier or more effective options this spring.