Sow the bougainvillea seeds on the surface of the soil, then gently “rake them in” to a depth not more than 2 to 3 times the thickness of the seeds. Water the seeds lightly.
The seeds of Bougainvilleas Prefer well draining soil just like the adult Plant. Any quality potting soil will suffice as a growing medium as long as it drains well and is slightly acidic.The roots of bougainvilleas are delicate. When the time comes for transplanting,make sure the seedling can slide easily out of the pot The pot does not need to be deep, but should hold enough of the growing medium to make frequent watering unnecessary. Make sure you have a sunny window sill for your seeds to sit on.
The bougainvillea seeds may show some early signs of growth. Be patient, though. Not all seeds will germinate at the same rate, even from the same parent plant. Seeds may take up to thirty days, but the results are worth the wait.Bougainvillea develops a wood trunk so can in fact be used for bonsai training