Lobelia cardinalis – UNS

Origin: North America
Usage: Foreground, Midground
CO2: Low
Light: Medium – High
Care: Easy
Growth Form: Stem
Growth Rate: Medium
Height:  4 – 12”
Width: 2 – 4”
Temp: 40 – 86F

Lobelia cardinalis is a stunning aquatic plant native to North America, primarily found in the eastern and central United States along moist grounds near rivulets, ponds, and road ditches. In its submersed state, Lobelia cardinalis showcases light green foliage and has been a popular selection for Dutch-style aquariums for many years.

This plant is easy to care for, thriving under moderate to high lighting conditions, which promotes more compact and lush growth. While CO2 injection is not strictly necessary, it is recommended for optimal health and vitality. Regular applications of liquid fertilizer are crucial for achieving a healthy size, with ideal nitrate levels between 10-20 mg/l and phosphate levels ranging from 1-2 mg/l, along with sufficient micronutrients and iron to encourage fast growth and abundant lateral shoots.

Lobelia cardinalis grows relatively slowly and maintains a controllable height, making it especially suitable for Dutch-style tanks where it is often used to create visually appealing ‘streets.’ Its unique leaf structure and size add a formal touch to aquascapes, making it an excellent choice for hobbyists looking to design a sophisticated and elegant layout in their aquariums.