Plant Calculator
Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Lobelia cardinalis you will need.
*Correct and successful spacing is complex and depends on project conditions.
Lobelia cardinalis
Cardinal Flower
- Brilliant fire red flower spikes
- Perfect for moist, sunny sites
- Clump-forming habit
- Use in the mixed perennial border
- Category: Perennials
- Hardiness Zone: 3-8
- Height: 24-48 in
- Spread: 12-24 in
- Bloom Color: Red
Soil Moisture
| • | Moist, Well-Drained |
Attributes
| • | Blooms all Season |
| • | Border or Bed |
| • | Container |
| • | Cut Flower/Foliage |
| • | Fast Growing |
| • | Great Foliage |
| • | Low Maintenance |
| • | Mass Planting |
| • | Naturalizing |
| • | Water's Edge / Bog Plant |
Habit
| • | Upright |
Season of Interest (Flowering)
| • | Spring |
Growing & Maintenance Tips for Lobelia cardinalis
The perfect plant for damp locations such as near ponds or low-lying areas, Lobelia will easily adapt to 'wet feet' but can also tolerate well-drained soils. If enough moisture is available, it will grow in full sun. In drier soils, it should be planted in part shade. Deadheading spent blooms will improve the overall appearance of the plant and may promote reblooming. It's a good idea to cut this plant back in the spring instead of the fall, since the foliage will help protect the root zone in the winter. Mulch is also recommended.