Plant the hibiscus about 1/4" deep.  They are heavy feeders but they can be overwatered.  They respond well if kept damp.  Most of these are called Moy Grande.  Don't confuse the name with muy.  Dr. Chung Moy at San Antonio Gardens hybridized these.  There are also a few of the other varieties in the envelope.  I didn't separate them because I lost the tags on the trees.  Kids.  These are hardy plants and will come back year after year.  Keep winter weeds out of them if you can.  Mine have already begun to grow.  Little stems are up to about 4" but grow rapidly.  Yours will bloom this year if you get them up and going in a few days. They like full sun. Cut back to 4" after first heavy frost.

Information credited to Hardy Hibiscus Society of America.

 

The above notes were sent with seeds that our anonymous contributor shared. I didn't get mine planted nearly early enough to expect blooms this year. And I wished later that I had soaked my seeds for the 24 hours that Byron Tumlinson always recommends for seeds that are big enough. I have made a permanent bed inside the fenced garden that is in a protected area. I plan another permanent bed which will get a lot of direct mid-day sunlight and look good next to the trumpet vine. (Nita's notes)