Great Blue Lobelia, Big Blue Lobelia, Blue Cardinal Flower, Blue cardinal flower, Great Lobelia , Tall Blue Lobelia, Virginia Bellflower, Vomit Root
A North American native that is perfect for the late summer garden, Lobelia siphilitica (Great Blue Lobelia) is a popular, upright perennial that produces long-lasting spikes of bright blue flowers atop finely-toothed, lance-shaped foliage from late summer to mid-fall. Quite an architectural plant that adds vertical interest to the landscape. The nectar and pollen of the flowers attract hummingbirds, bumblebees, and other long-tongued bees primarily. Exceptionally hardy, low care, and fairly pest and disease-free, Great Blue Lobelia tends to be short-lived, although it may self-seed in ideal growing conditions (without becoming invasive).
| Hardiness |
4 - 9 |
|---|---|
| Heat Zones |
1 - 8 |
| Climate Zones | 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17 |
| Plant Type | Perennials |
| Plant Family | Campanulaceae |
| Genus | Lobelia |
| Common names | Great Blue Lobelia, Lobelia |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Summer (Late) Fall |
| Height |
2' - 3' (60cm - 90cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing |
12" - 18" (30cm - 50cm) |
| Maintenance | Low |
| Water Needs | High |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained, Moisture Retentive |
| Characteristics | Showy |
| Native Plants | Alabama, Arkansas, Colorado, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Midwest, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Northeast, Ohio, Oklahoma, Pennsylvania, Rocky Mountains, South Carolina, South Dakota, Southeast, Southwest, Tennessee, Texas, United States, Vermont, Virginia, West Virginia, Wisconsin, Wyoming |
| Tolerance | Deer, Wet Soil |
| Attracts | Bees, Birds, Butterflies, Hummingbirds |
| Garden Uses | Beds And Borders, Bog Gardens, Ponds And Streams, Rain Gardens, Water Gardens |
| Garden Styles | City and Courtyard, Coastal Garden, Informal and Cottage, Prairie and Meadow |
| Hardiness |
4 - 9 |
|---|---|
| Heat Zones |
1 - 8 |
| Climate Zones | 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17 |
| Plant Type | Perennials |
| Plant Family | Campanulaceae |
| Genus | Lobelia |
| Common names | Great Blue Lobelia, Lobelia |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Summer (Late) Fall |
| Height |
2' - 3' (60cm - 90cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing |
12" - 18" (30cm - 50cm) |
| Maintenance | Low |
| Water Needs | High |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained, Moisture Retentive |
| Characteristics | Showy |
| Native Plants | Alabama, Arkansas, Colorado, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Midwest, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Northeast, Ohio, Oklahoma, Pennsylvania, Rocky Mountains, South Carolina, South Dakota, Southeast, Southwest, Tennessee, Texas, United States, Vermont, Virginia, West Virginia, Wisconsin, Wyoming |
| Tolerance | Deer, Wet Soil |
| Attracts | Bees, Birds, Butterflies, Hummingbirds |
| Garden Uses | Beds And Borders, Bog Gardens, Ponds And Streams, Rain Gardens, Water Gardens |
| Garden Styles | City and Courtyard, Coastal Garden, Informal and Cottage, Prairie and Meadow |
How many Lobelia siphilitica (Great Blue Lobelia) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Lobelia siphilitica (Great Blue Lobelia) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
Join now and start creating your dream garden!
