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Great Blue Lobelia
Lobelia siphilitica
As low as
$47.44
In stock
SKU
PFY-9710
Dense Spikes of Bright Blue in Late Summer
The Cardinal Flower 'Great Blue', Lobelia siphilitica 'Great Blue', is a hardy Cardinal Flower bearing tall, leafy spikes of clear blue flowers.
'Great Blue' is a clump-forming perennial with upright leafy stems. It blooms from late summer to mid-autumn, and it bears dense spikes of light to bright blue tubular, two-lipped flowers with a more prominent lower lip; long lasting blooms.
This Cardinal Flower prefers deep, moist soil and should be fertilized every two weeks in spring and early summer to improve flowering. Plants may be trimmed as they die back in hot summers. Use for edgings, near water, or in a mixed or herbaceous border.
- Long lasting blooms
- Looks great along edges
- Bright blue blooms thru mid Autumn
| Botanical Name | Lobelia siphilitica |
|---|---|
| Mature Height | 2 - 3 feet |
| Mature Spread | 10 - 12 inches |
| Soil Type | Moist |
| Sun Exposure | Full Sun, Partial Shade |
| Growth Rate | Medium |
| Bloom Period | Summer |
| Flower Color | Blue |
| Pollinator Required | No |
| Pollinator Friendly | Yes |
| Growing Zone Range | 4-9 |
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