This plant displays rippling leaves that are oval teardrop in shape and green to deep blood red in colour depending on conditions. The intense colouration of Ludwigia “Rubin” makes it a perfect midground contrast to surrounding green plants.
It is easy to grow in a variety of conditions, but requires intense lighting and a good supply of Iron to maintain its deep red leaves. CO2 injection is not necessary with this plant but will encourage optimal growth.
Like the familiar L. repens, the 'Rubin' variety is very easy to grow and has no particular demands. It grows quickly and equally well in a wide variety of conditions. Unfortunately, maintaining its deep red coloration is somewhat more of a challenge. Strong and unobstructed lighting from sources like power compact fluorescents or metal halides along with a good supply of iron go a long way towards that goal. Surprisingly abundant roots are formed at the nodes; their removal does not harm the plant. The only other unusual thing about Ludwigia sp. 'Rubin' is its sensitivity to shipping; it usually arrives in much less than perfect condition. However, it always recovers when provided with a good home.
Propagation above or below water is unproblematic and trouble-free. Side shoots are numerous and formed constantly.
As one of the reddest of the red plants, Ludwigia sp. 'Rubin' is quite an eye catcher. Even a few stems make a big impact as either a neatly maintained mid ground stand or as a group of stems protruding from behind a differently colored plant in the background. It makes a great contrast to either light or dark green plants and looks especially good with Microsorum pteropus 'narrow' or Hygrophila balsamica.