Lobelia cardinalis grows wild in Northern America. In the nursery this plant is cultivated in marshy conditions, forming dark-green leaves which are purple underneath. In aquariums the leaves turn a beautiful shade of light-green, with stems 10-30 cm tall and 5-10 cm wide. Widely used in Dutch aquariums in so-called “plant streets”. In open aquariums it grows above the water surface, where it forms very beautiful scarlet flowers and the leaves regain their colour. Can be used in garden ponds.
Lobelia cardinalis grows wild in Northern America. In the nursery this plant is cultivated in marshy conditions, forming dark-green leaves which are purple underneath.
In aquariums the leaves turn a beautiful shade of light-green, with stems 10-30 cm tall and 5-10 cm wide. Widely used in Dutch aquariums in so-called “plant streets”. In open aquariums it grows above the water surface, where it forms very beautiful scarlet flowers and the leaves regain their colour. Can be used in garden ponds.
Ideal Water Parameters & Care:
- Temperature: 18°C to 28°C
- pH Level: 6.0 to 7.5
- Lighting: Medium to high (brighter light creates compact, bushier growth)
- CO2: Beneficial for fast growth, but not strictly required
- Placement: Mid-ground or foreground if heavily pruned
Planting & Propagation:
- Placement: Best planted in the mid-ground in staggered rows or groups.
- Transition: Emersed-grown leaves (which have purple undersides) may melt off initially; new vibrant light-green underwater leaves will replace them.
- Propagation: Cut the stem tops and replant them directly into the substrate to form a dense bush.
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