Lobelia Cardinalis Care Guide

Lobelia cardinalis · Freshwater Plant

Lobelia Cardinalis
AI-generated illustration of Lobelia Cardinalis
Temperature
68-82°F
pH
6.5-7.5
Suggested tank
5+ gal
Origin
N. America
Family
Campanulaceae

What Lobelia Cardinalis look like

Lobelia cardinalis exhibits a striking morphology characterized by its thick, succulent stems that are pale green to yellow in coloration, providing a robust structure that can reach a maximum height of 15 inches. The leaves are oval-shaped, thick, and fleshy, arranged in neat, upright rows, contributing to its visually appealing stature. The plant lacks significant sexual dimorphism, as both male and female plants present similar physical characteristics. Defensive adaptations include the plant's fleshy structure, which may deter herbivory due to its tough texture. Unique morphological features include its dense foliage and the ability to produce vibrant red tubular flowers that emerge from the leaf axils, attracting pollinators and enhancing its ornamental value in aquatic environments.

Behavior & temperament

Lobelia cardinalis is typically found in shallow waters, often dwelling at the edges of ponds and wetlands, where it can thrive in both submerged and emergent forms. It does not exhibit a social hierarchy as it is not a colonial species; rather, it grows in clumps, providing habitat for various aquatic organisms. The plant's breeding behavior is primarily asexual through vegetative propagation, although it can also produce seeds that disperse in water. Its temperament is generally passive, contributing to its role in aquatic ecosystems without aggressive competition for space.

Diet & feeding

As a photosynthetic aquatic plant, Lobelia cardinalis relies on sunlight to produce energy through photosynthesis. In captivity, it requires a nutrient-rich substrate and adequate light to thrive, along with regular pruning to maintain its shape and health.

Behind the name

Lobelia (named after the botanist Matthias de Lobel); cardinalis (Latin for 'cardinal', referring to the bright red color of its flowers).

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Lobelia Cardinalis?

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