Many ‘blue-flowered’ plants are closer to purple than blue, so we’ve been sure to include plenty of true blue flowers in our lineup.
Discover some of the best plants with blue flowers to grow, below.
Wildflower meadows wouldn’t be the same without blue cornflowers dotted amongst the other blooms. Grow in full sun in well-drained soil, and combine with field poppies, corn marigolds, ox-eye daisies and dill.
Ever reliable forget-me-nots are prolific self-seeders, producing carpets of spring blooms – perfect for combining with tulips and wallflowers. For ponds, try the water forget-me-not, Myosotis scorpioides.
Like borage, Anchusa species have intense blue flowers and bristly foliage. They’re also popular plants for pollinators and are slug-resistant. Grow in full sun in moist, well-drained soil and enjoy the edible flowers. Cultivars to grow include ‘Loddon Royalist’ and ‘Dropmore’.
Gentians are prized for their vivid blue blooms. Gentiana sino-ornata is said to be the easiest to grow and there are lots of cultivars to choose from. They’re ideal for rock gardens and alpine displays, and perform best in neutral to acid soils. Flowers in autumn.
Unlike wood anemones and rue anemones, Anemone obtusiloba is an alpine species with pretty, watercolour-blue flowers. Similar anemones to grow include blue-flowered Anemone blanda and Anemone nemorosa ‘Robinsoniana’.
Ceratostigmas to grow include Ceratostigma plumbaginoides and Ceratostigma willmottianum, the former being smaller and herbaceous. Both have intensely blue blooms and enjoy growing in a well-drained soil in full sun.
The flowers of many Himalayan poppies (Meconopsis) are a gorgeous, true blue. They like shady conditions so are ideal for a moist, shady border. Find out how to grow meconopsis in this video with Monty Don.
Blue-flowered salvias are usually have either indigo or true blue flowers. For true blue blooms, try growing cultivars like ‘Oxford Blue’, ‘Cambridge Blue’ or ‘Dot’s Delight’. For best results, grow in a well-drained soil in full sun.
Eryngiums, or sea hollies, are striking perennials with electric blue flowers. They enjoy full sun, so try growing them in a hot, gravel garden alongside plants like echinops and verbascums. Slug-resistant.
Hydrangeas are robust, deciduous shrubs, with many blue-flowered cultivars to grow. They can be grown in soils of varying pH levels, but acid soils will keep the flowers blue, while more alkaline soils can turn blooms pink. Discover how to prune hydrangeas.