The largest Salvinia species is Salvinia oblongifolia, with up to 6 cm long and 2.5 cm wide leaves. It inhabits shallow stagnant waterbodies in Central and Eastern Brazil. This floating fern was already cultivated in Germany in 1910/11, but disappeared later on. In 1995 it was re-introduced by professor Elias R. de la Sota (Argentine) when he gave the plant as a gift to the Botanical Garden Berlin-Dahlem. S. oblongifolia has been available in trade infrequently since then.
Nutrient-rich water and high temperatures of 27 to 29 °C and intensive light provide for optimal growth for this large, attractive floating fern. Less favourable conditions cause it to develop a smaller, dwarfish habit, like other Salvinia species do, too.
- To be continued -
|Light||medium to high|
|Temperature tolerance||18 to 32 °C|
|Optimum temperature||24 to 28 °C|
|Carbonate hardness||0 to 21 °dKH|
|pH value||5 to 8|
|Carbon dioxide (CO2)||0 to 40 mg/l|
|Nitrate (NO3-)||10 to 50 mg/l|
|Phosphate (PO43-)||0.1 to 3 mg/l|
|Potassium (K+)||5 to 30 mg/l|
|Iron (Fe)||0.01 to 0.5 mg/l|
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