cardinal flower
Lobelia cardinalis
Cycle:
Herbaceous Perennial
Watering:
Frequent
Hardiness Zone:
3 - 9
Flowers:
Scarlet red, white or rose Flowers In Summer
Sun:
Full sun only if soil kept moist, Part sun/part shade
Soil:
Sandy Loamy Clay Humus
Fruits:
brown Fruits In Autumn Ready In Fall
Leaf:
Yes
Leaf Color:
green
Growth Rate:
High
Maintenance:
Low
Salt Tolerant:
Yes
Invasive:
Yes
Care Level:
Medium
watering
Cardinal flower (Lobelia cardinalis) should be watered deeply once a week during the growing season. Let the soil dry out slightly between watering. During periods of drought, extra water may be necessary. This species does not like overly wet soils, so water as needed only and check soil moisture regularly.
sunlight
Cardinal flower (Lobelia cardinalis) grows best in full sun to partial shade. Generally, it requires 6 hours of direct sunlight per day, ideally in the morning or early afternoon (not in the hottest part of the day). This species also enjoys growing in moist, acidic soil with good drainage. If the soil is too dry, the trunks may need to be watered occasionally. Cardinal flower does not do well in hot, humid climates. It is better suited for cooler climates, such as those found in northern regions.
pruning
Cardinal flower (Lobelia cardinalis) requires very little pruning. It can be done at any time that is convenient for you to do so. The plant should be pruned in late winter or early spring before it begins to grow new shoots. To prune, simply remove any dead or damaged branches, and any that are too long or too high. Make sure to leave some foliage around the base of the plant for protection during the cold winter months. If the plant is too tall, you can prune it by about a third of the height at this time. If it is growing too wide, you can cut back 1 or 2 of the longest branches. Pruning will help encourage more dense, bushy growth.