20 Brilliant Blue Flowers for Your Garden
Add a splash of color to your landscape with these rare, true-blue blooms.
Of the 280,000 flowering plants on earth, only 10 percent of them are blue. Look to the rare hue of these blue flowers (both light and dark) to brighten up your landscape or balance out warm-toned plantings. From teal and turquoise flowers to navy blooms and everything in between, our top picks will help you cultivate a gorgeous garden that sings the blues in a good way.
Delphinium
These popular wildflowers stand tall, so make sure to give them something to lean up against for support.
Love-in-a-Mist
This whimsical annual blooms in spring and can grow in a variety of soil types but prefers rich, fertile soil.
Aster
These star-like flowers are also known as "frost flowers" because florists often use them in autumn and winter arrangements.
Himalayan Blue Poppy
When most people think of poppies, they think of blooms in white, yellow, or red. That's largely because this stunning blue variety is so hard to grow; the only regions where it stands a chance is in parts of New England, the Pacific Northwest, and Alaska.
Lily of the Nile
Lily of the Nile is also known as Agapanthus, which comes from the Greek words "agape," meaning love and "anthos," meaning flower.
Hydrangea
One of the few true-blue flowers, hydrangeas can change color based on the pH level of their soil. To keep your petals blue, aim for a pH of about 5.2 to 5.5. Tip: It's easier to control pH levels in a pot, so consider planting your hydrangeas in containers if you're partial to a particular color.
Columbine
This easy-to-grow perennial blooms in a variety of colors and is a favorite of hummingbirds.
Globe Thistle
This pompom-like flower is fantastic for attracting bees and butterflies. It also dries well, so snip a few to enjoy the happy hue long after growing season.
Bellflower
These bell-shaped blooms grow in both white and blue-purple varieties, but white is less common. They enjoy well-drained soil and plenty of sunshine.
Forget Me Not
These charming, five-petaled wildflowers require minimal care and grow best in damp, shady areas.
Flax
Native to California, this delicate flower is fairly easy to grow but each bloom only lasts a day, so you'll want to plant plenty of them to see consistent flowering.
Gentian
Gentians make great ground covering but can be tricky to grow. For the best chance of success, purchase and plant them when they are about to bloom.
Cornflower
Also known as bachelor's button, cornflower is an annual flower comprised of 10 trumpet-like petals. In the past it often grew as a weed in cornfields, which is how it got its name.
Grape Hyacinth
These spring-blooming bulbs spread quickly, so plant them in an area you don't mind them taking over.
Lobelia
This easy-to-grow plant enjoys cool weather and is stunning planted in hanging baskets.
Monkshood
Though beautiful, all parts of this flower (also known as wolf's bane) are poisonous if ingested or if its sap comes in contact with mucous membranes. Always take care to use gloves and wash hands after handling monkshood.
Blue Daisy
This cheerful plant is fast growing, resistant to wind, and needs only moderate water and care. Even better? Bees and butterflies love it!
Anemone
These bold blue buds flower just three months after planting and can produce up to 20 flowers per bulb.
Scabiosa
Sometimes called pincushions, this summer bloomer is fairly tolerant of drought and grows best in well-drained soil.
Sea Holly
Looking for a plant that thrives on neglect? This is the one for you! The purple-blue flower favors poor, dry soil, so take it easy on the water and fertilizer.
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