Perennials for butterflies

Butterflies are cold-blooded and like warmth, so plant your butterfly-friendly plants in a part of the garden that is warm, sunny and sheltered.

Here are some of the best butterfly-friendly perennials you can grow for nectar from spring to autumn.

Primrose

Nectar can be scarce early in the year, so butterflies on the wing at this time will struggle to find enough nectar. Wild primrose, Primula vulgaris, is a good nectar source. It is also used as a caterpillar food plant by several species of moth.

Erysimum 'Bowles's Mauve'

If regularly deadheaded, Erysimum 'Bowles's Mauve' can be relied upon to flower almost all year round, providing early nectar for butterflies in spring, throughout summer and then late in the year, making it a very useful plant. Grow at the front or in the middle of a border.

Phlox

Phlox are pretty cottage garden stalwarts with pretty pastel flowers and a sweet, honey-like fragrance. They're ideal for growing in the middle or front of a border and thrive in rich, moist soil in light shade. They can also be grown in containers.

Valerian

Centranthus ruber (red valerian) does best in poorer, dry or chalky soils, where it forms a tidy, compact plant. It flowers early and continues into summer. If produces masses of seeds - if you see unwanted seedlings appearing, hoe them off or pull them out by hand.

Verbena bonariensis

Tall, with lots of purple flowers on stiff, wiry stems, Verbena bonariensis can be grown through other plants in a mixed border, in a gravel garden or in a border on its own. It flowers from midsummer until late in the season and is extremely rich in nectar.

Sedum

The old-fashioned pink forms of the ice plant, Sedum spectabile, such as Sedum spectabile 'Carl', pictured, produces the most nectar when it flowers in late summer and autumn. The newer, red varieties are less attractive.

Michaelmas daisy

Michaelmas daisies (Symphyotrichum) flower in late summer and autumn, hence their common name. They provide a welcome splash of colour when other flowers are starting to fade. They are also an important source of nectar and pollen for late-flying insects, including butterflies.

Don't forget to water

Plants produce more nectar if they are well-watered, so be sure to keep your plants well hydrated in warm, sunny weather.