blue cardinal flower
Lobelia siphilitica
Overview
The Blue Cardinal Flower (Lobelia siphilitica) is a clumping, perennial wildflower native to North America. It produces deep blue-violet tubular flowers on tall spikes. The foliage is dark green and oval shaped and each flowering stem reaches a height of nearly a metre. An excellent choice for a flower garden, Blue Cardinal Flowers prefer moisture-retentive, humus-rich soil and some afternoon shade. Long-lived, the flowers attract a variety of pollinators, including bees, butterflies and hummingbirds, making them perfect for a wildlife garden. Their striking colour and sweet fragrance make them a beautiful addition to any garden.
Care Guide
Watering
Frequent — every "3-4" days.
Light
Full sun Partial sun.
Soil
Sandy Loamy Clay Humus
Temperature
Hardiness zone 4-9.
Pruning
Best pruned in February, March, April, June, July, August, March, April, May.
Propagation
Division, Seed Propagation, Cutting, Layering Propagation
Related plants
Other plants you might like if you grow blue cardinal flower.
