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Blue Lobelia

Sale price$12.99

Blue Lobelia features vibrant blue flowers that cascade elegantly, adding a splash of cool color to containers and hanging baskets with its long bloom period.

Long-lasting blooms throughout the season

Low maintenance and hardy plant

Stunning, vibrant blue flowers

Thrives in

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Package of: Buy 1 + Get 2 Free

This plant ships:

Ships Week of May 12th
1 Year Guarantee on all plants

Blue Lobelia: Lobelia Siphilitica

Blue Lobelia has striking blue hues and an attractive shape; this perennial plant can elevate the aesthetics of any garden or outdoor space. It is an excellent addition to any landscape design, from attracting pollinators to providing visual appeal.

It is a fantastic choice when you crave flowers that swirl together showy blue blossoms with vibrant greenery in bright spikes. It's a striking, solidly built plant that delights people and pollinators.

The Aesthetics of The Blue Lobelia

Several large flowers spiral around the stout central stem in an extended cluster. They are positioned most heavily along the upper portion of the stem. The tubular flowers have five petals with edges that curl attractively. Two petals form an upper lip—three fuse together to create a lower lip that is more prominent. Blooms are typically about an inch long and may appear solid or striped.

While the bold flowers are the show's stars, the vibrant green foliage shines in its supporting role. The thick, unbranching stem stands firm and tall, allowing the plant to quickly reach two to three feet. Plants reaching four feet in height are not uncommon. The stems are wrapped in alternating leaves with no stalks in varying shapes. Some are shaped like a lance and finely toothed. These can measure up to five inches in length. Others are elliptical and can be between two and six inches long.

They are primarily found in shades of blue or purple. However, plants with white flowers are also available. In addition, crosses with cardinal flowers may result in plants that produce pink blooms.

Blue Lobelias Blooming Season

This wildflower generally unfurls its blooms in midsummer or later and continues the show until fall. In many regions, you can enjoy the flowers from July through October.

Exotic Flowers

They are unique flowers that put on a fantastic show, so they're an excellent choice when you want something big, bold, and beautiful. They attract hummingbirds, butterflies, and pollinators. They flourish along ponds and water features, are favorites in borders, thrive in rain gardens, and delight when paired with plants like ferns, heuchera, or cardinal flowers. 

 It prefers a balanced fertilizer, a 10-10-10 mix that should be applied monthly during the growing season. Organic compost also improves the soil and promotes healthy flowers.


 It can be grown in moist, well-drained soil in partial to full sun. It is suitable for borders, rain gardens, or near streams.

 They require consistent watering as they thrive in moist soil. Remove withered flowers to encourage consistent blooms. Trimming back the stems after the flowering period helps to increase growth.

 Can I grow It in containers?

 It can be grown in containers with excellent drainage and fertile soil. Potted plants need watering more often than those growing directly in the soil since they dry out much faster.

 Blue Lobelia is a short-lived perennial that lasts only 2 to 3 years. However, it readily self-seeds, so new plants will sprout season after season.

This Is How Your Plants Will Look upon Delivery

Bare Root Plants
Bloom season icon

Bloom Season

Summer

Bloom/Foliage Color icon

Bloom/Foliage Color

Blue

Height at Maturity icon

Height at Maturity

Over 12"

Care icon

Care

Blue Lobelia thrives in well-drained, consistently moist soil. Regularly water to moisten the soil, especially during hot, dry periods. Fertilize lightly in early spring, and remove spent flowers to encourage continuous blooming—mulch to retain moisture and suppress weeds.

Plant Reproduction icon

Plant Reproduction

Blue Lobelia spreads by reseeding, dividing clumps, or taking cuttings.

Shipping date depends on the date displayed and chosen when you order from the product's page.

We only accept returns on plants verified dead. If you think your plants have died, we offer a 1 year warranty, please use this File a Claim Link to verify dead plants and start with return warranty process.

Extended blooming period
Tolerant of moisture
Versatile growing conditions
Blue Lobelia - TN Nursery
Blue LobeliaBuy 1 + Get 2 Free Sale price$12.99

Blue Lobelia has been a great choice for my garden. The cascading blooms are gorgeous and add a lovely splash of color to my outdoor space. Very pleased with it!

Amanda Kevin, Verified Buyer

Zone 4

My Blue Lobelia from TN Nursery is flourishing and looks fantastic. The cascading blooms have transformed my containers, and the rich blue color is stunning.

Andrew Paul, Verified Buyer

Zone 5

The intense blue color and cascading blooms are a real eye-catcher. It’s been easy to care for and looks great!

Ashley Mark, Verified Buyer

Zone 6

What We Ship

The Benefits of Bare Root Plants

Bare root plants are shipped without soil or pots, making them lightweight and easy to handle. They arrive dormant, ready to be planted and thrive as beautiful, healthy additions to your garden.

Cost-Effective

With no heavy pots or soil, you'll save 50-60% on shipping costs, and you can easily plant our plants yourself—no equipment needed, just a spade for digging small holes.

Hassle-Free

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Better Growth

Bareroot dormant plants are more hardy because they adapt better to new environments, with stronger root systems that establish quickly, leading to greater resilience and improved survival rates in various conditions.

Eco-Friendly

Bare root native plants are environmentally friendly because they promote biodiversity, require less water and maintenance, and support local ecosystems, making them a sustainable choice for eco-conscious gardening

Features
Why You Will Love Our Blue Lobelia

Showy Blossoms and Vibrant Greenery:

Its tubular flowers, with their unique petal arrangement, add a bold touch to your garden. The blooms, often solid or striped, are complemented by lush green foliage and a sturdy stem that can reach up to four feet in height.

Perfect for Containers

Ideal for hanging baskets and patio pots, Blue Lobelia’s trailing habit makes it an excellent choice for adding color to containers and vertical spaces.

Attracts Pollinators

The vibrant blue flowers attract bees, hummingbirds, butterflies, and other beneficial insects. By planting Blue Lobelia, you support local pollinators and enhance garden biodiversity.

Seasonal Beauty:

Blue Lobelia typically begins blooming in midsummer and continues to dazzle until fall, from July through October in many regions. Its extended blooming period ensures a long-lasting display of beauty in your garden.

Caring Tips

How do I care for my Blue Lobelia?

Each box contains detailed care instructions and information about your product. But here's the basics.

Care Tips

Blue Lobelia thrives in well-drained, consistently moist soil. Regularly water to moisten the soil, especially during hot, dry periods. Fertilize lightly in early spring, and remove spent flowers to encourage continuous blooming—mulch to retain moisture and suppress weeds.

Light Requirements

Blue Lobelia flourishes in full sun to partial dye. It prefers bright, indirect light or filtered sun, which helps it grow well and produce vibrant blooms. Ensure it receives adequate moisture for optimal health and flowering.

Hardy Planting Zones

2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11

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Customer Reviews

Based on 18 reviews
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E
E Moore
Plants arrived quickly

The plants arrived quickly. Most were the bare root variety but the lobelia were tender little green plants. I had expected bare roots. I hope they make it through the winter!

T
Ted Lyon

Plants appeared healthy and have been planted

I
Irene Howell
I hope they’ll be okay!

I’m not sure where these came from, but I only received them today! (5 days after they were shipped out) I hope they’ll be okay. I planted them today right away. We’ll see what happens. I had Gotten a notification a day or two ago saying they were delivered, but they were not! Only today 9/3/2024.

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Vickie Tow
Perennial Lobelia

I received the plants very fast. They were packed well. The price was great, it was actually buy one get one free. I ordered 2 and was expecting 4. I think I actually received 7. This made me real happy. It was my first purchase with TN Nursery but it won’t be my last. So excited to watch these grow!

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Linda Degnan
Blue lobelia and red cardinal

Plants came in great shape… very excited to plant … perfect rainy day to do just that. Happy with this company, can’t wait for spring! ( tried to send video but couldn’t do it )

Frequently Asked Questions

How often should I water my plants?

How do I know if my plant is getting too much or too little sunlight?

What should I do to prepare my plants for winter?

What are the signs that my plant needs fertilizing?

How can I prevent pests from damaging my plants?

How do I choose the right plant for my climate zone?

Wholesale Opportunities

Interested in bulk orders?

Learn about our wholesale options and how we can supply your business with top-quality plants.

TN Nursery
TN Nursery