Groundcover plants, typically small in size, are ideal for blending in with taller perennials and shrubs in flowerbeds. They will save you from having empty, bare spaces between your plants, or you can use them to create vibrant, one-of-a-kind flowery carpets in your garden.
In the spring, their bright blue blossoms are a cheery sign that winter is at an end, while at the height of summer, they stand out vividly against the surrounding greenery.
Keep reading if you’re interested in a beautiful blue groundcover for your garden!
15 Types of Groundcover Plants With Blue Flowers
|Name||Months in bloom||Height||Light||Color|
|1||Blue Star Creeper||May to August||2” – 15″||From partial to full sunlight||Pastel blue|
|2||Grape Hyacinth||April to May||6″||From partial to full sunlight||Blue, purple, white, yellow|
|3||Catnip||June to October||1” – 3″||From partial to full sunlight||Blue, purple, pink, white|
|4||Spanish Bluebells||April to May||6” – 12”||From partial to full sunlight||Blue, pink, white|
|5||Siberian Bugloss||April to June||1” – 2″||From shade to partial sun||Light blue, white|
|6||Clematis ‘Arabella’||June to September||3’ – 5’||Full sunlight||From purple to pastel blue with a hint of lilac-pink|
|7||Periwinkle||April to May||6” – 12”||Sun, shade, and partial sun||Blue, purple, white|
|8||Dwarf Plumbago||July to September||9″ – 1″||From partial to full sunlight||Intense blue|
|9||Geranium||June to September||1’ – 2’||From partial to full sunlight||Violet – blue|
|10||Lithodora diffusa||April to May||6” – 1’||From partial to full sunlight||Light blue, blue, purple|
|11||Ajuga reptans||May to June||3” – 6”||From shade to partial sun||Violet – blue|
|12||Stemless gentian||May to June||4” – 6”||From partial to full sunlight||Cobalt blue|
|13||Germander speedwell||March to July||6” – 12”||From partial to full sunlight||Blue|
|14||Persian Speedwell||June to September||2″ -12″||From partial to full sunlight||Light blue|
|15||Campanula cochleariifolia ‘Jingle Blue‘||June to August||3” – 6”||From partial to full sunlight||Violet – blue|
15 Beautiful Groundcover Plants With Blue Flowers
- Blue Star Creeper (Isotoma fluviatilis)
Blue Star Creeper is a fantastic, long-lasting groundcover with pretty little blooms.
It grows through a network of underground root systems that branch out wildly and are tricky to control. Therefore, it is best to place Blue Star where it will not interfere with other plants.
The elegant, bright green leaves of Blue Star Creeper make it just as attractive even when it is not in bloom. So, it works as a good enough lawn in hard-to-grow places.
Blue Star prefers sunny or partially shaded locations. It blooms best when exposed to direct sunlight but will need more water as a result.
- Grape Hyacinth (Muscari sp.)
Grape hyacinths are bulb plants that remain in the ground through the winter and bloom in the spring.
They create a brilliant sea of breathtaking blue flowers when fully in bloom. They take little care and will thrive in almost any soil, preferably in sunny settings.
Grape hyacinths can be used as edging plants or in neat rows to improve the appearance of walkways and flower beds. It’s also fine to plant them at the base of trees that lose their leaves through the winter.
My favorite Grape hyacinths are Muscari aucheri ‘Mount Hood,’ Muscari azureum, and Muscari neglectum ‘Baby’s Breath.’ I always look forward to seeing their sweet baby blue flowers at the start of spring.
- Catnip or Catmint (Nepeta sp.)
Species of the genus Nepeta, commonly known as catnip or catmint, are very hardy perennials that have never given me any trouble in my garden. I have hundreds of them, and they thrive in both direct sunlight and partial shade. They only require moderately fertile soil, as long as it drains correctly.
Catnip plants, especially ‘Walker’s Low’ and other low-growing species, can be used to create lovely borders for gardens. Filling in the spaces between larger flowers in the middle of a flower bed is where the ‘Six Hills Giant’ variety really shines.
Bees and butterflies love catnip, and you can always hear them buzzing around it.
- Spanish Bluebells (Hyacinthoides hispanica)
They thrive in garden beds or rock gardens and bloom in full or partial sun.
Flowers appear in the late spring, and each bulb produces several flower scapes that spread quickly.
- Siberian Bugloss (Brunnera macrophylla)
Brunnera is often used under trees, larger shrubs, and other shaded areas. Its blue blossoms are strikingly similar to those of the forget-me-not.
Two of my favorite Brunneras are ‘Jack Frost’ and ‘Silver Heart’ due to their shimmering silver leaves. Their stunning foliage will shine a light even into the darkest corners of the garden.
Brunnera will grow nicely in places with partial shade and moist but not soggy soil.
- Clematis ‘Arabella’ (Integrifolia Group)
Using Clematis as a groundcover plant is unusual, but it’s worth exploring because of its unique and stunning carpet of leaves and blooms.
Some varieties of Clematis are designed to sprawl out on the ground. These Clematis vines in the C. integrifolia species can grow without trellises or other supports when used as groundcover.
Of course, not all Clematis suit groundcover. Many of them are actually classic vines. But, if you choose the right type, you will achieve a look that may pleasantly surprise you.
It is charming when grown among other plants and is a unique addition to a rose, rustic, or romantic garden.
Clematis ‘Arabella’ is resistant and easy to grow. It likes sunny places, fertile, permeable soils, and neutral or slightly alkaline ph.
- Periwinkle (Vinca minor)
Periwinkle is one of the rare plants that thrives nicely in deep shadows. It is ideal for filling up empty spaces between trees and shrubs.
It’s a garden superhero that’s easy to cultivate, requires little in terms of soil and location, and is frost-hardy.
It has lovely purple-blue flower buds that open widely in April and continue to appear until the end of summer. Periwinkle is an evergreen, so it looks great right up into winter.
- Dwarf Plumbago (Ceratostigma plumbaginoides)
Dwarf plumbago is an intriguing perennial that blooms with striking cobalt blue flowers in the late summer and fall.
It spreads quickly via rhizomes and forms eye-catching carpets. It is drought-tolerant and grows well in ordinary garden soils that are well-drained and slightly calcareous.
It prefers sunny places but should tolerate moderate shade. It is frost-tolerant, although it is best to cover it during harsh winters.
- Geranium (Geranium hybridum)
I have many geraniums, but none can compete with ‘Rozanne’ in terms of flowering time. From June onwards, it never stops blooming until the first frost. It thrives in full sun or partial shade.
Geranium ‘Rozanne’ has received many prestigious awards in the horticultural industry and was crowned with the “Plants of the Century” title at the 100th anniversary of the Chelsea Flower Show.
- Lithodora diffusa
This low-growing perennial ornament is an excellent choice as a garden groundcover.
Lithodora diffusa is a plant that grows well in rocky areas, perennial beds, and along borders.
It performs best in full sun, in a quiet place that is protected from the wind. The soil should be mostly moist, humus-rich, and well-drained.
The ‘Cambridge Blue’ and ‘Heavenly Blue’ varieties of Lithodora diffusa are, without a doubt, my personal favorites. Both of them are a gorgeous shade of blue, while ‘Cambridge Blue’ also has subtle white stripes.
- Bugleweed (Ajuga reptans)
Ajuga reptans, often known as Blue Bugle or bugleweed, is a low, creeping plant that quickly and tightly covers the area where it is planted.
Blue flowers appear in late May and early June. It is rapidly expanding and can be used to make beautiful garden carpets. It is also easy to control and can be kept in place with a little weeding every now and again.
I prefer planting it in more frequently used parts of the garden because it regenerates quite quickly, and you can count on pollinators to visit your garden often, as they adore Ajuga reptans flowers.
- Stemless gentian (Gentiana acaulis)
Gentiana acaulis stands out in the garden thanks to its cobalt blue trumpet flowers.
Because the plant can’t handle being too wet or too dry, it needs to be always slightly damp using stony drainage.
Gentiana prefers full sun but will bloom well in moderate shade as well. It doesn’t require complicated care; simply remove faded inflorescences and divide clumps after spring flowering every 3–4 years to rejuvenate the plant.
- Germander Speedwell (Veronica chamaedrys)
During flowering, the tops of the shoots are covered with tiny, pretty blue flowers with white eyes.
It grows well in slightly moist or dry, well-drained soils in sunny, warm locations. It is very frost-resistant and easy to grow.
- Persian Speedwell (Veronica persica)
Persian speedwell is an undemanding ground cover plant that prefers sunny, moderately moist, and fertile places.
When the leafy stalk comes into contact with the ground, it can take root and give rise to a new generation, but it can also be grown from seeds.
Persian speedwell is an expansive plant that can be problematic in its rapid growth. The remarkable regenerative and adaptive skills this plant possesses make combating it a challenging affair. So, bring Persian speedwell into the garden only after considerable consideration.
- ‘Jingle Blue’ Bellflower (Campanula cochleariifolia ‘Jingle Blue‘)
The Bellflower “Jingle Blue” is a show-stopper due to its simple elegance and magnificent, excessive blossoming.
Above the foliage, slightly drooping stems are decorated with delicate, blue-lilac flowers with charming bell-shaped blooms.
I highly recommend the ‘Jingle Blue’ variety because of its durability, number of blooms, and overall beauty. It prefers stony, dry soil and looks phenomenal on rockeries, borders, escarpments, or walls. Planted in larger groups, it creates impressive, blooming carpets.
Growing conditions for this bellflower should include good sunlight, well-drained soil, and a mildly alkaline pH. soil.
Among the blue-flowering ground cover plants, there are plants that prefer shade as well as those that grow in bright sunlight. Simply put, you have quite a selection to explore.
It is also important to note that the growth rates of ground cover plants vary from species to species. The most expansive ones can be planted on the edges of flowerbeds and lawns. Slower-growing species can be grown on a rockery or between path surface pieces.
When used to fill up empty spaces near the ground and between taller plants, ground-cover plants are a beautiful addition to a flowerbed arrangement.
Consider placing several varieties or species of assorted colors next to each other to create irregular, colorful patches.
Both my wife and I are gardening enthusiasts and we have many species of plants and vegetables in our garden. Some of the information in this article is from my own experience.