Family: Sapindaceae
Scientific name: Sapindus saponaria
Common name: Soapberry
Origin: Central America

The yellow fruits of this plant are commonly known as soapberries, because they can be used as soap to wash for example hair or clothes. The soap-like substance in the fruits is called saponin and the fruits are still used a.o. in Mexico, despite the introduction of synthetic soaps. Each fruit contains a big, black seed, and are preceded by big white flower trusses. In temperate climates the species can be grown as a container plant at a minimum of -5 degC during the winter.

Sowing description: First sand the seeds with sanding paper, in order to make the seed wall thinner. Then soak the seeds for 24 hours in lukewarm water, after which they can be sown in sowing mix. Cover with plastic foil or glass and put away for 2-3 months in the fridge. After this period the seeds can be germinated at 20-25 degC.

Sowing time: Whole year
Difficulty: Intermediate
Minimum temperature: -5 degrees Celsius