This species is an annual or woody perennial herb growing up to 6 feet tall. It has an erect form and a winged stem. The linear leaves are alternately arranged. The flower has four to five yellow petals. This species has been shown to have allelopathic effects on other plants.
They do require a high light intensity of 3 to 5 watts per gallon of full spectrum (5000-7000K) light.
The Ludwigia Repens has very strong roots, so you can use almost any kind of substrate. However, it is better not to use sand, as this can suffocate the roots. Also, if your substrate does not have nutrients you have to consider using chemicals to “feed” the plant, at least in the first few months.
They do require a high light intensity of 3 to 5 watts per gallon of full spectrum (5000-7000K) light.