Cassia Alata - Seeds and Germination
Cassia Alata seeds have a waterproof skin which makes the germination slow, from months to few years.
There are many ways of removing this skin. We have to scratch gently the skin until a stain appear in the skin. After that, we have to put the seeds in hot water for two days, changing the water every day.
The ideal substrate is a mixture of sand and black peat in equal parts.
Mix and water it well. Drain the mixture, pressing to expel all the water.
The soil has to be wet but no waterlogged.
Fill with the soil the container chosen to sow the seeds.
Put the seeds on the substrate, leaving two cm between them.
Cover with a layer of soil equal to the thickness of the seed.
The seeds may take 10-15 days to three months to germinate under perfect conditions. For all that time we have to keep constant moisture and temperature. In order to improve germination, the temperature should be around 20ºC.