Great Blue Lobelia 1 Live Perennial – Lobelia siphilitica – 1 Gallon Pot

Great Blue Lobelia (Lobelia siphilitica) is a North American native herbaceous perennial admired for its striking blue to violet-blue flowers and upright growth habit. Its tubular, two-lipped blossoms appear along leafy flower spikes during late summer and early autumn, adding rich color to rain gardens, woodland edges, and moist perennial borders.

This flowering perennial develops an upright, clump-forming habit with lance-shaped green leaves and distinctive blue flower spikes. The blossoms provide nectar for visiting bumblebees and other pollinators, making Great Blue Lobelia a valuable addition to native plant gardens and pollinator-friendly landscapes. It is especially well suited to areas with consistently moist soil.

This listing includes one live Great Blue Lobelia in a 1 gallon nursery pot. It grows best in full sun to partial shade, particularly where the soil remains consistently moist. It prefers fertile, moisture-retentive soil and is suitable for rain gardens, pond margins, streamside plantings, and naturalistic perennial beds.

Plant Quantity: 1 Live Perennial

Pot Size: 1 Gallon Nursery Pot

Shipping Height: Not specified by supplier

Common Name: Great Blue Lobelia

Scientific Name: Lobelia siphilitica

Plant Form: Live Potted Herbaceous Perennial

Plant Type: Native Flowering Perennial

Flower Color: Blue to violet blue

Flower Form: Tubular, two-lipped flowers arranged along upright spikes

Foliage Color: Green

Growth Habit: Upright, clump-forming

Bloom Season: Late summer to early autumn

Native Range: Eastern and central North America

Plant Condition Disclosure:

Live plants may be shipped dormant, leafless, recently pruned, bare root, or partially defoliated depending on season, weather, and shipping requirements.

Natural variation in size, branching, foliage density, color, root structure, and overall appearance should be expected.

Important Note:

You will receive a live starter plant (seedling/young plant). Listing photos show the plant at a mature stage for reference only. The actual plant size, shape, and appearance may vary and will be significantly smaller than the images shown.

• Common Name: Great Blue Lobelia

• Scientific Name: Lobelia siphilitica

• Plant Quantity: 1 live perennial

• Pot Size: 1 Gallon Nursery Pot

• Shipping Height: Not specified by supplier

• Plant Form: Live potted flowering perennial

• Plant Type: Native herbaceous perennial

• Plant Family: Campanulaceae

• Life Cycle: Perennial

• Native Range: Eastern and central North America

• Flower Color: Blue to violet blue

• Flower Form: Tubular, two-lipped blossoms

• Flower Arrangement: Upright flowering spikes

• Bloom Season: Late summer to early autumn

• Foliage Color: Green

• Foliage Texture: Lance-shaped leaves

• Growth Habit: Upright, clump-forming

• Sunlight: Full sun to partial shade

• USDA Hardiness Zones: Generally 4–9

• Soil Preference: Fertile, consistently moist soil

• Water Requirements: Moderate to high; consistent moisture preferred

• Moisture Tolerance: Suitable for moist garden areas and rain gardens

• Pollinator Interest: Attracts visiting bumblebees and other pollinators

• Landscape Uses: Rain gardens, pond margins, streamside plantings, native perennial borders

• Container Suitable: Yes, with adequate moisture and drainage

• Seasonal Appearance: Herbaceous; dies back during winter dormancy

• Primary Ornamental Feature: Vivid blue late-season flower spikes

One live Great Blue Lobelia (Lobelia siphilitica) perennial, natural stems, seasonal foliage, root system, growing medium, and 1 gallon nursery pot.

Pot Size: 1 Gallon Nursery Pot

Shipping Height: Not specified by supplier

Plant Form: Live Potted Native Herbaceous Perennial