Great Blue Lobelia vibrant purple flower clusters with green stems

Great Blue Lobelia

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$7.99
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Great Blue Lobelia

$7.99
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Great Blue Lobelia vibrant purple flower clusters with green stems
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Planting & Growing Information

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Planting Zone

4-9

Height at Maturity

Over 12"

Water Needs

High and Moderate

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

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Planting & Growing Information

Ships

Ships Now

Planting Zone

4-9

Height at Maturity

Over 12"

Water Needs

High and Moderate

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

Customer Favorites That Go Will With Great Blue Lobelia

Great Blue Lobelia Details

Great Blue Lobelia - Shade Perennial

Great blue lobelia is a perennial flowering plant used both in gardens and in the wild as an ornamental species․ It is native to much of the world‚ most of it in North America; the flower is blue‚ and the plant is delicate and grows in a damp‚ shaded habitat․ In addition to its appearance‚ especially its bluish flowers‚ which is often characterized as a celebration of nature's beauty‚ it has many other uses․ It is able to provide food and shelter for a number of animal species in the region‚ and has continued to have cultural importance․ In this intersection of aesthetics‚ biodiversity‚ and cultural importance‚ we find the story of this plant and the many ways it improves our lives․

Pollinator Value of the Great Blue Lobelia

Great blue lobelia provides a large amount of food to pollinators․ Spikes of flowers bloom and emit a sweet smell that attracts pollinators‚ such as bees‚ butterflies‚ and hummingbirds‚ to the plant․ Many plants are pollinated with the assistance of pollinators‚ which are critical for reproduction of many plants‚ such as the lobelia plant․ While bees collect nectar from the flowers‚ pollen is transferred from one flower to another to complete cross-pollination․ Benefits of pollinators extend beyond the needs of the great blue lobelia to ensure its survival‚ supporting species diversity and the dispersal of new species to gain a foothold in the ecosystem․ Their visits not only show us nature's beauty‚ but they‚ too‚ become part of the complex relationships that make a thriving ecological community․

Bloom Season, Uses and Care

Great Blue Lobelia 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 such as bees, butterflies, and hummingbirds. Deadheading spent blooms may encourage a longer flowering period, though the plant often reseeds naturally.

Landscaping Uses

Landscape gardeners also have a preference for the great blue lobelia․ It is suitable for use in the shade garden or woodland garden where it botanically thrives in shaded woodland environments and aesthetically complements shaded or woodland environments due to the color contrast between the flowers and green foliage․ It is used in perennial landscapes with ferns or other shade plants to provide a full range of colors‚ and is also used for its ability to attract pollinators to an area․ The perennial has many advantages for homeowners who want to enjoy nature and biodiversity within their own yards․ For many years the plant spreads out․ It becomes a permanent part of the seasonally changing landscape‚ providing a spectacular focal point for the garden․


Is Great Blue Lobelia a perennial?

Yes, this shade-perennial gem is hardy and thrives in many USDA zones, including 4–9. It dies back in winter and returns each spring. In the right conditions, it may self-seed and form beautiful naturalized colonies over time, without ever becoming invasive. It's a gentle lady at best and never intrudes.

 

Are Great Blue Lobelia Plants Deer Resistant?

Great Blue Lobelia (Lobelia siphilitica) is considered a hardy, deer-resistant plant. Its slightly bitter foliage and milky sap tend to make it less appealing to browsing animals. In areas with heavy deer pressure, young plants may still need temporary protection until established.

Can Great Blue Lobelia grow in wet soil?

Yes, this plant actually thrives in moist to wet soil conditions. It is an excellent perennial for rain gardens, low-lying areas, pond edges, and stream banks. Unlike many perennials that struggle with soggy roots, Great Blue Lobelia tolerates periodic flooding and consistently damp soil, making it ideal for difficult wet spots in the landscape.

An Image of What Our Great Blue Lobelia Looks Like on Arrival

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.

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