Great Blue Lobelia

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Shipping Information

We dig plants when your order is received, and ship immediately via US Priority Mail. You will receive a tracking number via email when plants are shipped. All plants are packed to be safe in their packages for up to 3 days after receipt.

How We Protect Your Plants For Transit

We sell only bare root plants. We dip the roots in tera-sorb silicone gel to retain ample moisture for transit and surround with plastic. This provides superior protection for plants in transit for up to 12 days.

Upon Receipt Of Your Plants

Open your plants and inspect the same day received. We offer 3 days to report any problems with your order. Bare root plants need to be planted within 2-3 days of receipt unless weather prohibits. Store in a cool place and keep roots moist and covered with plastic until they can be planted. Water daily for the first week after planting.


Great Blue Lobelia is a Perennial Wildflower and is Very Pretty


The flowers on this plant will show in midsummer and last into the autumn months. The bloom is a bluish color with a white center; the blooms are located up and down the stalk and provide a whole appearance. The foliage is medium green. Great Blue Lobelia is considered a woodland plant and will look amazing in a natural area or wildflower garden. Great Blue Lobelia prefer moist soils that have good drainage.

Great Blue Lobelia Blooms in the Summer

Botanical Latin Name: Lobelia siphilitica

Common Name: Blue lobelia

Sun Exposure: Light shade

Mature Height: Two to four feet

Spread: Six inches

Spacing: 12 inches

Growth Rate: Fast

Flowering Time: Summer

How Long It Flowers: A month or more

Flower Color: Blue

Soil Requirements: Fertile, moist, loamy soil

Pruning: Since it self-sows abundantly, it might need to be divided

Flower Form: Great Blue Lobelia has spires of beautifully colored blue flowers with drooping lips, each with five lobes. They are borne on stiff stems that raise them above rosettes of dark green leaves. Though it does like shade, the lobelia will grow in full sun if it's watered sufficiently. The plant doesn't live long, but it's considered a perennial because it self-sows so freely. There are close to 400 species of lobelia, and many other types come in shades of pink, white or red. The flower gets its name from botanist Matthias de Lobel and has been used medicinally for centuries.

Great Blue Lobelia can be medically helpful.

Great Blue Lobelia was used as a purgative and treatment for asthma.

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