15 Unique Types Of Blue Plants (Including Photos)

Have you ever wanted to fill your garden with glorious shades of blue plants, but you’re not too sure where to start? If so, this article is just for you! 

Choosing your favorite blue plants to dot around your space can bring your garden to life and transform a dull outdoor space into something bold, bright, and vibrant. 

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If you want to find out more about how to turn your garden into a deeper shade of blue, read on to see which plants we recommend, and how your and your garden can get the most out of them. 

1. Cornflower

Cornflowers, which are the national flower of Poland, are a perfect plant to have in your garden. Not only do they help make it look prettier, but they also attract butterflies and bees as well as other insects. 

With ten petals on each stem, these flowers need to be planted in fully sunny spots which will help them bloom continuously. They’re not appropriate for indoor growing, but as they grow straight up, they are great for filling in a small bare area of your garden.

They also self-seed, so once these plants are established in your flower bed, they will continue to return year after year, bringing a gorgeous blue hue to your garden.

2. Iris

The Iris takes its name from the Greek word meaning ‘rainbow’, which is a perfect fit for this flower. Not only is this plant available in a bright blue shade, but it’s also available in a variety of other colors, all of which will bring a ‘rainbow’ to your garden. 

The Iris blooms during the spring and summer seasons, and the plant can vary in height from 6 inches to 4 feet depending on which type of Iris you choose to plant. This flower needs both sun and shade, so make sure you pick a spot in your garden that can deliver both.

3. Delphinium

The Delphinium flowers are a perfect way to give height to both floral arrangements and a garden as these flowers are known for being tall.

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Typically, they need a wall or trellis to attach to grow, as well as well-drained soil. To bloom continuously, they also need an equal amount of both light and shade and thrive better in cooler conditions, however, they won’t grow in wet environments. 

Spiky in appearance, and incredibly vibrant in color, Delphiniums are a great way to bring drama to your garden. 

4. Blue Star

The Blue Star tends to bloom in late spring/early summer and the good news is that it’s relatively easy to grow and take care of. It can grow in almost any type of soil, however, it does prefer neutral soil pH. This plant is also resistant to drought, and if placed in an area that catches the sun, the flowers will bloom more regularly. 

The star-shaped blossoms lend their name to this plant and even though they are small, they are incredibly eye-catching. They’re a great plant to have for that transition between spring and summer when your garden can tend to look a little bare.

5. Hydrangea

The Hydrangea plant is considered one of the most breath-taking plants you can have in your garden and although it’s available in many different colors, the blue variety stands out. With the flowering bush blooming at the beginning of spring, these plants can remain in your garden for the whole summer season if they are looked after properly. 

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To increase its blooming period, you will need to trim it at the beginning of the season, before the rise of the leaves in spring. If looked after, this gorgeous plant can withstand heavier winter conditions and bloom again the following year.

6. Clematis

This climbing plant comes in a variety of colors, including blue, and is a great plant to have in your garden if you are wanting to decorate fences, walls, or trellises.

The blue Clematis is associated with courage and faithfulness, making it a perfect gift to give someone who has these qualities. The ideal conditions for growing a Clematis are well-drained soil and continual exposure to sunlight. 

If you have a bare wall in your garden, plant a Clematis alongside a Climbing Rose, to add some beauty and magnificence to your area. 

7. Perennial Geranium

The Perennial Geranium is a flower that blooms regularly and for long periods. As it’s resistant to the cold weather, this plant can be enjoyed from June all the way through to the winter period. It’s resistant to cold weather and low temperatures so should be on your ‘must have’ list for your garden. 

For best results make sure you plant this flower in soil that is well-drained and with partial shade. If you’re a fan of flowers such as tulips and hyacinths, the Perennial Geranium will be a great addition to your garden collection.

8. Periwinkle

The Periwinkle is a short bush that is often used as ground cover due to its height. On the bush, you’ll find incredibly pretty and fragrant flowers that are an intense light blue. As this plant spreads relatively quickly, it’s often used as a foundation cover for taller plants, so pairing it up with your favorite tall flowers is a perfect way to make the most of it. 

Ideally, this plant prefers well-drained soil and equal exposure to sunlight and shade. Once the roots of this plant are established, the amount of watering it needs decreases, which makes it an easy plant to grow and care for.

9. Empire Blue Butterfly Bush

Another name for this plant is Buddleia. And if you are trying to attract butterflies and hummingbirds into your garden, this plant is your answer. It’s incredibly aromatic, which is one of the many reasons it attracts attention. But another reason is that it’s very beautiful.

The lance-shaped leaves and blooming branches are covered in glorious little blue flowers. 

For best results, place this plant in an area with constant exposure to sunlight. That way, you can enjoy its bloom and beauty for longer.

10. Brunnera

This flower blooms in early spring and is often thought of as the ‘early bird’ of the blooming season. It has a stunning five-petal flower in a vibrant blue as well as sprays above the foliage. If you’re including this flower in your garden, make sure you plant it in well-drained soil that is out of the direct sunlight as it will burn.

However, providing it with shade will help it to grow strong and bloom regularly. So it can be enjoyed for longer. 

11. Forget Me Not

This small, delicate plant is a beautiful addition to any garden. The tiny light blue flower has yellow stamens and is a lovely color accent to add to amongst other bright flowers.

It blooms during the summer season and needs lots of moisture and a shady position to bloom properly. It’s also self-seeding and spreads quickly. So when planting, choose an area large enough for the plant to eventually spread across. 

The name of this plant also has an interesting story. It hails from a 15th-century legend. It states that whoever was wearing this flower would not be forgotten by their loved ones.

12. Gentian

The Gentian is the symbol of femininity. And this flower’s distinctive shape and color make it a great choice for any garden or setting.

Typically found in Europe, the Gentian is known to attract both butterflies and hummingbirds. So it will help bring life into your space. It blooms from March through to the winter season. And the shade of blue that this flower produces is deep, vibrant, and sensational.

There’s no other blue flower that matches this shade. 

Although the appearance of this flower is sought after. It’s good to note that this flower can also be very challenging to grow and maintain in a garden. Generally, it prefers well-drained soil and a place with partial shade. But specific care, when grown in a garden, would depend on the region as this plant is originally a wild alpine plant. 

13. Salvia

Often referred to as Wild Sage. This flower is a great choice for hotter climates and areas that tend to suffer from drought. It’s part of the mint family and even though it’s available in several colors. The blue variety is considered the prettiest one. 

Once grown it can be added to tea or used as a spice, and it is truly delicious. 

14. Passionflower

This magnificent plant can grow up to 33 feet tall and even when not blooming, it’s still considered incredibly beautiful. Relatively easy to grow and care for. The Passionflower is resistant to severe winter conditions and manages to re-grow every year.

It blooms throughout the summer and autumn months. And can be found covering fences, walls, and trellises with its pretty green leaves. To bloom fully, it needs heavy sunlight, so an area away from any shade is ideal for this plant. 

15. Bellflower

This tall plant is also known as Campanula and is often used for interior vase arrangements due to its height. Just as its name suggests, the blossoms of this plant are shaped like little bells, and even available in different colors. The blue variety is one of the most popular choices for gardeners as it stands out amongst other flowers. 

These flowers enjoy the sunshine and well-drained soil. But equally, they can also grow in areas with some shade without any issues. 

Final Thought

With so many unique blue plants available, you can easily bring your space to life with an array of beautiful blue shades. Whether you’re looking for something low maintenance, or you want to discover a new blossom to add to your collection. This article shows that there is something out there for everyone, no matter what space you have or how green-fingered you may be!

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