Denver Plants

Common name: "Cardinal Flower"
Latin name:
Lobelia cardinalis

Cardinal Flower
Native to: United States
Zone:
3 - 9 

Winter hardy:
Yes
Water depth:
1" - 4"

Pond size:
Small to Large
Flowers:
Yes, bright red

Height: 
30" - 36"
Spread:
12"

Pests:
Aphids, leaf spot and water snails
Sunshine:
Pictured: Lobelia cardinalis
Cultural information: The "Cardinal Flower" originally named by the wife of Charles 1... Queen Maria, because the color of the plants flowers were the same shade as the Cardinal's robe... hence cardinalis. 

Plant in early spring at the ponds edge or directly in the pond at a maximum depth of 4". Cut plants back at the end of the growing season. If grown in a pond basket, remove from the pond at the end of the season and store heavily mulched in a protected location. Remove any dead or dying foliage and flowers as they appear. With a little searching... you may be able to locate the new hybrid Lobelia called 'Queen Victoria'.

The Lobelia family is quite large. Most of us are familiar with the small flowering varieties found in hanging baskets and patio pots. Your local Garden Center will have a good supply of Lobelias in the early spring.

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