Q.China doll house plants from seeds
I planted 72 seeds in a starter tray w/lid and a heating pad. 13 plants grew. Its november and i have been unable to tranfer them to pots. Every time i do the plant dies. I have 7 left. They are still very small. Any advice on how to save them. Thanks for any help you can give me. Cindy

Certified GKH Gardening Expert
You should try transplanting into a container that is not much larger than the one it is in now. You will have to do this until the roots appear through the new container, and until the proper size is reached. Putting these into a container too big will lead to rotting and the death of the seedling, since there are no roots to take up all of the water through the soil.
This will be a very careful process each time, not to disturb the roots.
This article will help you once you get it into a container and it takes root: https://www.gardeningknowhow.com/houseplants/china-doll/radermachera-sinica.htm