20 Blue Flowering Vines for Gorgeous Garden Walls and Trellises

Looking to brighten up your fence, pergola, or garden trellis with something truly eye-catching? Vines with blue flowers offer a rare and refreshing burst of color that instantly lifts the mood of any space.

In this guide, drawing from my experience and research, I’ve listed 20 of the most stunning blue flowering vines—from sky-colored climbers to bold, deep indigo bloomers. Whether you need something fast-growing to cover a wall or a compact trailer for a hanging basket, you’ll find a match that fits your style and space.

Each vine comes with helpful details like when it blooms, how big it gets, and what kind of care it needs—so you won’t waste time guessing. Plus, we’ve highlighted those that thrive in containers, attract pollinators, or give all-season appeal.

If you’re ready to turn plain walls into flower-filled focal points, let’s dive in and find the blue beauty your garden’s been missing.

What Makes Blue Flowering Vines So Special?

There’s something uniquely calming and magical about blue flowers. Unlike the usual reds and yellows you see in most gardens, blue blooms are unexpected—and that’s exactly why they work so well.

These vines bring a cool-toned elegance that softens harsh edges and adds depth to green spaces. They’re perfect for creating contrast in bright gardens or bringing serenity to patios and balconies. And they’re not just beautiful—many varieties bloom for weeks, attract pollinators, and even offer sweet fragrance.

The best part? Blue climbing plants can do more than climb. Some are perfect for ground cover, others trail beautifully from baskets, and a few even double as privacy screens. Whether you want drama, softness, or just something different, a blue flowering vine gives your garden that wow factor with minimal effort.

Discover 20 Blue Flowering Vines and Choose the Perfect Ones for Your Garden Setting:

1. Blue Sky Vine (Thunbergia grandiflora)

If you’re looking for a fast-growing climber that makes a dramatic statement, the blue sky vine is a standout. Its large, trumpet-shaped flowers in lavender-blue shades bloom in abundance and contrast beautifully with heart-shaped green leaves. This flowering vine with blue flowers thrives in warm climates and quickly blankets arbors, fences, or trellises with a tropical flair. It’s perfect if you want lush coverage and long-lasting blooms in late summer and fall.

Best for: Fast coverage on arbors, fences, or walls
Hardiness Zone: 9–11
Mature Size: 20–30 feet tall
When to Plant: Spring, after frost has passed
Bloom Time: Summer through fall
Care Requirements: Full sun, regular watering, and well-drained soil

2. Blue Passionflower (Passiflora caerulea)

Known for its truly exotic blooms, the blue passion flower vine brings a touch of the tropics to temperate gardens. Each flower is a delicate arrangement of pale blue petals, intricate filaments, and a bright central crown. Besides their beauty, these blue flowering vines can attract pollinators and may even produce small edible fruits in the right conditions. They’re ideal for fences or trellises and add instant intrigue wherever they grow.

Best for: Tropical, pollinator-friendly gardens
Hardiness Zone: 6–10
Mature Size: 10–20 feet
When to Plant: Spring or early summer
Bloom Time: Mid to late summer
Care Requirements: Full sun to part shade, moist but well-drained soil

3. Blue Morning Glory (Ipomoea indica)

Looking for a vine that climbs fast and blooms early in the day? The blue flower morning glory vine offers vibrant sky-blue blossoms that open with the sunrise. As one of the most well-known blue climbing plants, it can cover large areas in a single growing season. While it’s stunning, it can be aggressive—so keep an eye on where it spreads, especially in warm zones.

Best for: Trellises, fences, quick vertical coverage
Hardiness Zone: 9–11 (annual in cooler zones)
Mature Size: 10–15 feet
When to Plant: After last frost in spring
Bloom Time: Summer to early fall
Care Requirements: Full sun, moderate watering, well-draining soil

4. Blue Potato Vine (Lycianthes rantonnetii / Solanum jasminoides)

The blue potato vine is a charming twiner that produces an abundance of star-shaped blooms in deep blue to violet tones. Often featured in blue flowering vines pictures, it gives off a soft fragrance and pairs well with light-colored walls or trellises. As a vine with big blue flowers, it works equally well in the ground or large containers, especially in sunny spots.

Best for: Arbors, patios, large containers
Hardiness Zone: 9–11
Mature Size: 6–10 feet
When to Plant: Spring after the frost
Bloom Time: Spring through fall
Care Requirements: Full sun, well-draining, fertile soil, light pruning to shape

5. Butterfly Pea (Clitoria ternatea)

Delicate and low-maintenance, the butterfly pea vine is loved for its striking, deep blue petals with a hint of white. These small blue flowers on vine appear almost daily during warm weather, especially when grown in full sun. A favorite for herbal tea lovers, this blue flowering vine plant is also a great nitrogen-fixer—making it a useful companion in the vegetable garden.

Best for: Small trellises, containers, edible gardens
Hardiness Zone: 9–11 (grown as annual elsewhere)
Mature Size: 6–10 feet
When to Plant: Spring or early summer
Bloom Time: Summer to fall
Care Requirements: Full sun, well-drained soil, occasional feeding

6. Bluebell Vine (Cobaea scandens)

If you’re after elegance and dramatic trailing blooms, the bluebell vine won’t disappoint. Its bell-shaped flowers start green and deepen to violet-blue as they mature, giving a multi-toned effect. A classic blue flower climbing vine, it grows fast and fills space quickly—ideal for softening a trellis, screen, or wall. Though technically a tender perennial, it’s most often grown as an annual in cooler zones.

Best for: Vertical displays, quick coverage
Hardiness Zone: 9–11 (annual in cooler zones)
Mature Size: 10–20 feet
When to Plant: After final frost
Bloom Time: Mid-summer to early fall
Care Requirements: Full sun, fertile, well-draining soil, regular watering

7. Blue Moon Wisteria (Wisteria macrostachya ‘Blue Moon’)

The blue moon reblooming wisteria flowering vine is a cold-hardy, reblooming variety that can flower up to three times a year. Its long, cascading clusters of soft lavender-blue flowers carry a gentle fragrance and add romantic charm to any structure. While slower to establish, this vine becomes more rewarding each season and is perfect for larger spaces.

Best for: Pergolas, large arbors, long-term structure coverage
Hardiness Zone: 4–9
Mature Size: 15–25 feet
When to Plant: Spring or fall
Bloom Time: Late spring, with possible summer and early fall rebloom
Care Requirements: Full sun, rich soil, strong support, annual pruning after bloom

8. Cape Leadwort (Plumbago auriculata)

If you need a fuss-free bloomer that thrives in heat and covers ground fast, Cape Leadwort is a go-to. This sprawling ground cover vine with blue flowers produces airy clusters of pale blue blooms almost non-stop in warm weather. It works beautifully along slopes, over retaining walls, or even trained loosely up a trellis. Its soft, bushy growth also makes it ideal for coastal gardens or dry, sunny spots where other plants struggle.

Best for: Ground cover, slopes, informal trellises
Hardiness Zone: 8–11
Mature Size: 2–4 feet tall, 4–10 feet spread
When to Plant: Spring to early summer
Bloom Time: Late spring through fall
Care Requirements: Full sun, well-drained soil, drought-tolerant once established

9. Sky Blue Clustervine (Jacquemontia pentanthos)

The Sky Blue Clustervine is a quick-growing twiner that delivers a soft, dreamy effect with masses of true blue flowers. This tender tropical climber—also known as the blue cluster vine—loves heat and humidity, making it perfect for sunny porches or arbors in warm zones. Its small, five-petaled blooms resemble forget-me-nots but appear in larger, continuous sprays.

Best for: Tropical gardens, quick trellis coverage
Hardiness Zone: 10–11
Mature Size: 10–12 feet
When to Plant: Late spring after frost
Bloom Time: Summer through fall
Care Requirements: Full sun, moist but well-draining soil, light support

10. Bluebell Creeper (Billardiera heterophylla)

This Australian native is a charmer with its bell-shaped blossoms and light, vining habit. If you’re seeking a vine with blue flowers that stays compact, Bluebell Creeper is a great fit for small gardens or patio containers. It’s semi-woody, evergreen, and lightly climbs with a slightly trailing growth. A perfect pick for pergolas or for weaving through shrubbery without overwhelming the space.

Best for: Containers, shrub borders, light trellises
Hardiness Zone: 9–11
Mature Size: 6–10 feet
When to Plant: Spring or early summer
Bloom Time: Late spring through summer
Care Requirements: Full sun to partial shade, well-drained soil, minimal pruning

11. Solitary Clematis (Clematis ‘Rooguchi’)

Not your typical clematis, ‘Rooguchi’ stands out with nodding, bell-shaped blooms in deep indigo-blue. A favorite among collectors, this blue flowering vine adds an elegant, vintage look to garden walls or tuteurs. Though non-vining by nature, it can be loosely tied to supports or left to weave through other plants. A true gem among blue climbing plants for cottage-style gardens.

Best for: Cottage gardens, mixed beds, vertical accents
Hardiness Zone: 4–9
Mature Size: 6–8 feet
When to Plant: Spring or early fall
Bloom Time: Late spring to early fall
Care Requirements: Full sun to part shade, rich, well-draining soil, mulch the base to keep roots cool

12. Glory Bower Vine (Clerodendrum ugandense)

This fast-growing vine produces butterfly-like flowers in striking shades of blue and violet, each with long arching stamens that give it a fluttering appearance. Its unique blooms frequently show up in blue flowering vines pictures due to their photogenic charm. Glory Bower is semi-evergreen in warm zones and a show-stopper when trained up fences or archways.

Best for: Decorative screens, pollinator gardens
Hardiness Zone: 9–11
Mature Size: 8–12 feet
When to Plant: Spring
Bloom Time: Summer through fall
Care Requirements: Full sun to partial shade, well-drained soil, occasional pruning for shape

13. Bengal Clock Vine (Thunbergia laurifolia)

A close cousin of the blue sky vine, Bengal Clock Vine is a bold, tropical climber known for its oversized lavender-blue flowers and vigorous growth. As a flowering vine with blue flowers, it easily cloaks large pergolas or fences in a matter of weeks. The trailing stems and lush foliage make it ideal for dramatic entrances or sunny backdrops in warm regions.

Best for: Large trellises, tropical garden focal points
Hardiness Zone: 9–11
Mature Size: 20–30 feet
When to Plant: Spring to early summer
Bloom Time: Late summer through fall
Care Requirements: Full sun, fertile and well-draining soil, regular watering

14. Blue Coral Pea (Hardenbergia violacea)

If you’re after early spring color, the Blue Coral Pea is one of the first blue climbing plants to bloom. Its cascading clusters of pea-like flowers resemble miniature wisteria and provide a bold pop of violet-blue. Native to Australia, it’s a reliable evergreen in mild climates and ideal for softening fences or cascading over low walls.

Best for: Early-season blooms, evergreen foliage
Hardiness Zone: 9–11
Mature Size: 6–12 feet
When to Plant: Fall or early spring
Bloom Time: Late winter to early spring
Care Requirements: Full sun, well-drained soil, drought-tolerant once established

15. Southern Star / Tweedia (Oxypetalum caeruleum)

This soft-stemmed twiner brings an unexpected touch of sky blue to compact garden spaces. Often grouped with blue flowering vine plants, Tweedia is adored for its five-petaled star-shaped blooms and powdery blue-green foliage. While not aggressive in growth, it’s perfect for pots, small trellises, or mixing into wildflower-style beds. Bonus: the flowers are long-lasting in bouquets too.

Best for: Containers, cut flower gardens, small supports
Hardiness Zone: 8–10 (annual elsewhere)
Mature Size: 2–4 feet
When to Plant: Spring after frost
Bloom Time: Summer through fall
Care Requirements: Full sun, moist but well-drained soil, may need staking in windy areas

16. Snail Vine (Vigna caracalla)

One of the most uniquely shaped blue flower climbing vines, the Snail Vine offers tightly coiled, violet-blue blooms that resemble swirling seashells. This fragrant, fast-growing vine thrives in warm climates and wraps around trellises and arches with ease. Its unusual form draws curiosity and pollinators alike, making it a conversation starter in any garden.

Best for: Scented arbors, whimsical garden designs
Hardiness Zone: 9–11
Mature Size: 10–20 feet
When to Plant: Spring
Bloom Time: Late summer to fall
Care Requirements: Full sun to part shade, fertile soil, consistent moisture

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17. King’s Mantle (Thunbergia erecta)

Unlike most climbers, King’s Mantle is a shrubby species often shaped into a bush—but when left to grow freely, it can lean and sprawl like a semi-vine. Commonly mistaken as a vine weed with blue flowers in tropical landscapes due to its speed, it actually produces rich purple-blue, tubular blooms that attract butterflies and hummingbirds.

Best for: Tropical beds, informal screens
Hardiness Zone: 9–11
Mature Size: 4–8 feet tall and wide
When to Plant: Spring or early summer
Bloom Time: Year-round in warm zones
Care Requirements: Full sun to part shade, well-draining soil, occasional pruning to shape

18. Chinese Wisteria ‘Blue Sapphire’ (Wisteria sinensis)

If you’re seeking blue climbing plants with drama and fragrance, Blue Sapphire Wisteria delivers cascading racemes of lilac-blue flowers in late spring. As a vigorous vine with big blue flowers, it needs strong support and structured pruning but pays off with its spectacular seasonal show. Avoid planting near structures without a plan—it can be powerful.

Best for: Pergolas, large arbors, formal garden entrances
Hardiness Zone: 5–9
Mature Size: 20–30 feet
When to Plant: Fall or early spring
Bloom Time: Mid to late spring
Care Requirements: Full sun, deep fertile soil, yearly pruning for shape and blooms

19. Jacaranda Vine (Jacaranda mimosifolia)

Technically a tree, Jacaranda can also be trained as a vine when young in tropical landscapes. Its fern-like foliage and vivid blue-purple trumpet flowers give it a cascading, airy feel, making it a fitting mention in this list of blue flowering vines. Ideal for gardeners looking for something that bridges between tree and trailing climber.

Best for: Espalier-style growth, warm-climate landscapes
Hardiness Zone: 9–11
Mature Size: Up to 25 feet trained, much larger as a tree
When to Plant: Spring
Bloom Time: Late spring to early summer
Care Requirements: Full sun, sandy well-drained soil, minimal pruning once shaped

Must See: Best Plants for Shallow Pots

20. Blue Daze (Evolvulus glomeratus)

Low-growing and sun-loving, Blue Daze is one of the best ground cover vines with blue flowers. Its silver-green foliage beautifully complements its small blue flowers on vine-like runners that gently spill from containers or border beds. A go-to for drought-tolerant landscapes and seaside gardens.

Best for: Ground cover, pots, borders, hanging baskets
Hardiness Zone: 9–11
Mature Size: 1–2 feet tall, 2–3 feet wide
When to Plant: Spring to early summer
Bloom Time: Late spring through fall
Care Requirements: Full sun, sandy well-drained soil, low maintenance

Are Any Blue Flowering Vines Invasive?

Yes, a few blue flowering vines can become invasive if left unchecked—especially in warm, humid climates where they grow aggressively year-round. For example, Blue Sky Vine (Thunbergia grandiflora) and Blue Morning Glory (Ipomoea indica) are beautiful but known to spread rapidly and smother other plants if not pruned regularly. Similarly, Chinese Wisteria may be stunning in bloom but can cause structural damage or outcompete native plants without careful management.

Before planting any blue climbing plants, always check with your local extension office or nursery to confirm if a variety is invasive in your area. And remember, invasive doesn’t always mean “bad”—it just means it needs boundaries. If you love a vigorous vine, give it a controlled space and a strong support structure, and stay on top of trimming.

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Ideas for Supporting and Training Blue Flowering Vines

Once you’ve chosen your favorite blue flowering vine, giving it the right support is the key to helping it thrive—and shine.

Here are some creative and practical ideas for training these beauties in your garden:

Trellises: These are ideal for most vines, offering a sturdy vertical frame they can cling to. Perfect for smaller spaces or fence accents.
Arbors & Pergolas: Create a showstopping entryway or shaded seating area by training blue bloomers like Wisteria or Passionflower over an arbor.
Fences: Let your vines weave their way across old or plain fences, instantly turning them into floral tapestries.
Hanging Baskets: Smaller or trailing types like Blue Daze or Butterfly Pea look stunning cascading from containers.
Obelisks or Garden Towers: These vertical structures add height and work great for medium vines like Snail Vine or Bluebell Creeper.
Espalier Frames: Use flat wooden grids or wires to train vigorous vines like Thunbergia along walls for a neat, artistic effect.
Tomato Cages or DIY Bamboo Tepees: Great for container vines and seasonal growers—affordable and functional.

A quick tip: Most vines benefit from a little help when young. Gently tie or guide their stems onto supports early, then let nature (and gravity) do the rest.

Must Read: Best Trailing Plants for Hanging Baskets and Pots

Conclusion

As we wrap up this exploration of stunning blue flowering vines, I can’t help but think of how these serene shades have transformed corners of my own garden. From the bold blooms of Blue Sky Vine to the delicate charm of Butterfly Pea, each climber brings its own rhythm, mood, and magic to a garden wall or trellis.

I hope this curated list inspires you to weave more blue into your space—whether it’s a burst of tropical vibrance or a soft cascading calm.

Now I’d love to hear from you…🪻💙👨‍🌾

Have any of these blue bloomers made it into your garden yet? Or do you have questions, tips, or stories about your favorite climbers?

Share your thoughts below—let’s grow our blue-bloomed garden community together.

Morever, if you’re facing any plant problems or want to learn more about a specific flower, drop your question in the comments—we’ll gladly create a detailed article for you! 🌿💬

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Information Sources:

Here at RASNetwork Gardening, integrity and accuracy are at the core of our content creation, with every article solidly backed by peer-reviewed research and reliable references. See the list of trusted sources used in this article below.

1. North Carolina Extension Gardener Plant Toolbox

2. University of Florida

3. Mississippi State University Extension Service

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