Place the seeds in a glass of water for 24 hours. Press the seeds inside the water gently with your index and thumb in order to release any air trapped inside the seed and let the seed sink at the bottom of the glass.
Place the soil in the pot and place every seed about 4-5 cm away from each other. Cover the seeds with 1-2cm of soil.
Water every day and keep the pot at high temperatures 18+ C. Mimosa needs a lot of sun. at winter keep plant near a window in order to have sun access.