Cardinal Flower
Lobelia cardinalis
Plant Details
USDA Plant Hardiness Zones: 3a-9b  Find Your Zone
Plant Type:Â Perennial
Height at Maturity:Â 3-4′
Width at Maturity:Â 1′
Spacing:Â 12″ mass plantings;Â 3′ or more for space between plants
Spacing:Â 12″ mass plantings;Â 3′ or more for space between plants
Growth Habit / Form:Â Upright
Growth Rate:Â Fast
Flower Color:Â Intense Red
Flower Size:Â 2″Â
Flowering Period:Â Mid Summer into Fall
Flower Type:Â Single
Fragrant Flowers:Â Â No
Foliage Color:Â Green
Fragrant Foliage:Â No
Berries:Â Â No
Berry Color:Â No
Sun Needs:Â Part Shade (Afternoon Shade)
Water Needs:Â Â Average
Soil Type:Â Â Clay (amended), Loam, Sand (amended), SiltÂ
Soil Moisture / Drainage:Â Well-drained moist to Wet
Soil pH:Â 6.0 – 7.5 (Moderately Acid to Slightly Alkaline)
Maintenance / Care:Â Low
Attracts:Â Visual Attention, Butterflies, Hummingbirds. Beneficial Pollinators
Resistances:Â Disease, Heat, Humidity, Insect, Rabbit, Wet Soil
Description
A wonderful North American native plant that the hummingbirds will thank you for planting. The tall stems of the Cardinal Flower are densely packed with intensely show scarlet red flowers on large inflorescences from mid summer into fall. Easy to grow in moist, rich soil and will naturalize freely. Perfect for those partially shaded wet spots in the garden!
Landscape & Garden Uses
Cardinal Flower is perfect for planting in partially shaded sites with a moisture retentive soil, such as near ponds, streams, lakes and other sites with somewhat swampy conditions. If conditions are right the plant will naturalize freely. A fine addition to bog gardens, perennial gardens, cottage gardens, and red theme gardens.
Growing Preferences
Lobelia isn’t too fussy about soil but grows best in a consistently moist soil of average fertility. Too much shade and flowering will be diminished. In northern regions it may tolerate full sun with adequate moisture. At least 4 hours of direct sunlight per day is suggested for best flowering. Plant with the top of the root ball even with ground level. Care and maintenance are minimal. Feed in spring with an organic plant food.Â
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