Lobelia quadrangularis

Lobelia quadrangularis is still new and hardly known in the aquarium hobby. This Lobelia occurs in nothern Australia and the Pacific island Vanuatu. It grows in wet places such as margins of rivers and creeks, above and under water. In contrast to Lobelia cardinalis, it develops thin, creeping stems with small leaves in its emersed form. Grown as submerged aquarium plant, the shoots are rather ascending to upright. Until now there's hardly information about Lobelia quadrangularis as aquarium plant. However we have noticed that it easily grows with aquasoil, medium to strong lighting, CO₂ addition and regular macro- and micronutrient supply. The growth rate is moderate. Overall, it appears to us not particularly demanding. As well as other stem plants, it is easily propagated by cuttings of the stem tip and side shoots. This Australian Lobelia looks best as a group in the midground. It provides an interesting accent with its rather small, light green leaves that are arranged in two rows along the stem. Lobelia quadrangularis should also be interesting as creeping emersed plant in paludariums and Wabi-Kusa.

New aquarium plant from Australia Small, light green leaves Moderate growth rate Emersed shoots with creeping growth habit

Middle Ground

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