March 1-15 is the start of spring here. Time to plant citrus seeds. These have been in the refrigerator all winter in a zip lock bag dried and dusted with fungicide. I've had very good luck over the years keeping seeds this way. Seeds are mostly satsuma with some flying dragon and yuzu. I didn't get many flying dragon fruit this year as I moved it last spring and cut it back.
I used a very sandy mix under the seeds. I used Pro-Mix to cover them.