50 seeds Crape Myrtle, Lagerstroemia Indica, Tree Seeds (Mixed Colors) Fall, Fast, Showy

I was able to get most of the seeds to sprout. There were no instructions that came with them on how to propagate them. I put the seeds in the refrigerator for a week to mimic the winter. I'm not sure if this helped them to sprout. I took a guess and thought they might need to be cold for awhile. There was very little on the internet to help me figure out if they needed any special care to propagate the seeds.