Lobelia siphilitica, commonly known as Great Blue Lobelia, is a striking perennial aquatic plant native to North America. It thrives in moist environments and is often found along streams, ponds, and wet meadows. This plant is known for its vibrant blue flowers, which bloom in late summer and early fall, adding a splash of color to any garden. Its upright form and spiky floral arrangement make it a visually appealing addition. Lobelia siphilitica is also a favorite among pollinators like bees and hummingbirds, playing an important role in the ecosystem.

Why We Like It

• Attracts Wildlife: Especially beloved by bees and hummingbirds.
• Vibrant Blue Flowers: Adds a beautiful blue hue to gardens.
• Low Maintenance: Easy to grow and care for.

What to Know

• Soil Requirements: Prefers moist, rich, well-drained soil.
• Watering Needs: Requires consistent moisture; ideal for wet areas.
• Sunlight: Thrives in full sun to partial shade.
• Fertilization: Benefits from occasional fertilization.
• Winter Care: Mulch in winter to protect roots in colder climates.

Flower Colour

• Blue

Flowering Months

• July
• August
• September

Eventual Height and Spread

• Height: Approximately 60-90 cm
• Spread: Approximately 30-60 cm