Skip to product information
Great Blue Lobelia Plant

Great Blue Lobelia Plant

The Great Blue Lobelia perennial plants are a must-have for old southern plantations and southern homeowners want them in their shade gardens. Its deep purple blooms and delicate foliage make it a showstopper for flower gardens and beds. The blooms climb the stalks of brilliant green foliage, making them a perfect pairing for the Cardinal flower, also in the Lobelia family. It blooms from mid-summer into early fall, typically July through September. It produces tall spikes of vivid blue to violet-blue flowers that attract pollinators like bees, butterflies, and hummingbirds. Deadheading spent blooms may encourage a longer flowering period, though the plant often reseeds naturally.

Quantity
$6.99

Add 1 and we will send you the 2nd product automatically

Fast Shipping Nationwide
Healthy Bare Rooted
Safe Ship Moisture Packed
Guaranteed Grower Direct

Hassle-Free Guarantee

WE GUARANTEE ALL PLANTS TO ARRIVE IN EXCELLENT CONDITION

Great Blue Lobelia vibrant purple flower clusters with green stems
1/5

Planting & Growing Information

Ships

7-10 Days

Planting Zone

4-9

Height at Maturity

Over 12"

Water Needs

High

Sun or Shade

Partial shade and Shade

Bloom Season

Fall

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.

Exposure

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.

Plant Attributes

Extended blooming period , Tolerant of moisture, Versatile growing conditions

The Great Blue Lobelia perennial plants are a must-have for old southern plantations and southern homeowners want them in their shade gardens. Its deep purple blooms and delicate foliage make it a showstopper for flower gardens and beds. The blooms climb the stalks of brilliant green foliage, making them a perfect pairing for the Cardinal flower, also in the Lobelia family. It blooms from mid-summer into early fall, typically July through September. It produces tall spikes of vivid blue to violet-blue flowers that attract pollinators like bees, butterflies, and hummingbirds. Deadheading spent blooms may encourage a longer flowering period, though the plant often reseeds naturally.

Planting & Growing Information

Ships

7-10 Days

Planting Zone

4-9

Height at Maturity

Over 12"

Water Needs

High

Sun or Shade

Partial shade and Shade

Bloom Season

Fall

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.

Exposure

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.

Plant Attributes

Extended blooming period , Tolerant of moisture, Versatile growing conditions

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.

‹
›

Frequently Asked Questions

How tall does Great Blue Lobelia grow?

Great Blue Lobelia typically grows 2 to 3 feet tall with tall spikes of vibrant blue flowers. Its upright form adds height and color to gardens and naturalized areas. It’s a favorite among hummingbirds and butterflies for its nectar-rich blooms.
Where does lobelia grow best?

Lobelia grows best in moist, rich soil with full sun to partial shade. It thrives along pond edges, rain gardens, or shaded flower beds. With steady moisture and light, it produces brilliant blue blooms all season long.
How do you keep blue lobelia blooming all summer?

To keep Blue Lobelia blooming all summer, water it regularly and remove spent flowers to encourage new growth. A light application of fertilizer can boost continuous blooms. With moisture and care, it stays vibrant and full of color through the season.

Why Buy Bare Root Plants From TN Nursery?

Since 1959, TN Nursery has grown and shipped quality bare root plants nationwide. Shipped during dormancy, bare-root plants develop strong root systems and establish quickly. Our experienced team carefully harvests and packages every order, providing growers with trusted plants backed by over 65 years of nursery experience.

Learn More About

Bare root trees

Customer Reviews

Let customers speak for us

from 14918 reviews
Love these Hydrangeas

Purchased both last year and again this year. Easy to grow and beautiful blooms. Thank you so much!

Khaugh
Blue Hydrangea Shrub
So many little ferns.

I already feel like a success

Glassweever
Fiddlehead Fern
Beautiful Lilly

So many little gems can’t wait for next year or maybe this year I feel lucky

Glassweever
Lily Of The Valley Plant
Awesome!

I’ve **** had a blue vervain plant, but it was very fast shipping. I planted them and followed the instructions and within two days they have sprouted so fast!!!

Chelsi
Blue Vervain
My Milkweed is thriving!

They were delivered as six tiny roots and are growing like a weed in full sun and plenty and water. Can’t wait to see them bloom.

Proud Papa
Milkweed Plant
Red Maple

I had doubts when I first opened the box. Packaged well. After planting them after two weeks they came to life and are flourishing quite well. They are very healthy and now branching out vividly. Thank you!

Ken H.F.B.F.
Red Sunset Maple Tree
Giant Chicory!

I purchased a selection of blue plants. I planted the bare roots in a large planter I call the nursery. I wait until they are adapting to their new environment. When they start growing about three inches, I transplant to a larger pot, then to their permanent location in my garden. One grew to four feet. Others are 1- 2 feet! I can see buds sprouting and can’t wait until they bloom. I did have to cut the 4ft one down to 2 ft so it would get fuller.

Virginia Burns
Chicory Plant
Beautiful bare roots!

Healthy bare root trees. I have not planted them yet but I have planted many bare roots and these look like they will be growing in no time.

Ann
Tree of Life - Gingko Biloba
Always above and beyond

I received my ironweed bareroots today and they are massive.....very healthy and strong looking and once again TN nursery delivers above and beyond quality....

Sara Taylor
Ironweed Plant
Love my trumpet vines

Received my 3 trumpet vine bareroot plants on the 26th og March, I planted them the same day and today on April 23rd they all are doing well.....

Salt Taylor
Trumpet Vine | Hummingbird Vine
American Chestnut Renewed

Just wanted to let you guys know that both of my recently purchased American Chestnut trees, both, have now started growing after planting. Can’t what to watch them grow. Thank you guys! Awesome

ROBERT HUFFMAN
TN Nursery
Good ferns

I planted them 13 days ago and a few on them went from nothing to over 10" tall already.

Corgi farts
Giant Ostrich Fern
My favorite spring flower

My absolute favorite spring flower. I’ve bought several over the years. Sometimes I’ve found they might not come up until the second year but most from this nursery come in the next spring.

Julie Ann
Virginia Bluebell
Shipment arrived perfect

I just want to say I would give 5 star satisfaction but my trees are just now in the ground. My shipment arrived fast and in great condition. The bare root trees already trimmed to perfection. I am so pleased. Been in the ground a week and already have green growth.

Karen G.
TN Nursery
Fuyu persimmon

Tnnursery shipped my fuyu persimmon excellent. My plants are healthy and tall. And Good price . I wil order again. Love

Laddawan Viriyaphap
Fuyu Persimmon Tree