If the roots out a quater inch or more, Get a plastic cup, poke holes in bottom for drain, fill halfway with dirt, poke small hole in top of soil with pencil or something gently put seedling in hole, leaving top of the seedling pretty much even with soil gently pinch soil around sprout. Carefully drip water and saturate all soil, but without flooding and burying seedling. Put plastic wrap, I should say Saran Wrap (maybe I can get an endorsement lol) on top of cup, hold in place w/ a rubberband. Make sure to poke hole thru the plastic wrap so it or should I say hopefully she can breathe. Put under fluorescent light or really any bulb, set timer18/6 your good to go. At least that's how I do it. I usually use cuts but I just did this with seeds last week and worked for me.