I don't know your climate but do remember some discussions on this plant some years ago on a forum. Some people from California were growing it successfully, but I don't remember where exactly they were from. Is yours the "Alba" (white flowers) or the yellowish one? Mine is an "Alba", it just sat for a while when I first put it in the ground but after a couple of years it took off fast. Now it's well above the roof. I think they need time to settle in and establish a good root system.

Thank you tropicbreezent, We live in San Jose, CA. As you said, may be I need to wait. Thank you once again,

I found a bunch of grafted Magnolia champacas at this little Asian supermarket near Univ of N FL a few mos ago. I bought one. It is about 4 ft tall now. No flowers yet. I will have to keep it in the greenhouse if it freezes this year. I have tried to grow the champaca before from seeds but never really had any luck.

~SJN