Regular potting soil (Fertilome, not the Miracle Gro stuff -that’s too heavy..)
A heavy pot (to keep it from tipping over) that allows for an inch or so on all sides of the bulb.
Pot it up so about 1-2” of the bulb is above the dirt.
Water, put in sunny window (south or west exposure.) No need to fertilize. If the bulb is healthy, it has eveything it needs right inside of it. Have a stake ready in case you need to prop it up a bit. If it’s getting enough light, it won’t be spindly or droopy and won’t require staking.
Wait...and say a prayer if you’re so inclined, LOL! :)
Amarylis will generally re-bloom if it has had enough down-time. If the bulb is really old, you may just get leaves and no bloom. It’s always a cr@p shoot.
Shameless plug for one of the catalog companies we own. I’m also selling a good variety of Amarylis in my store right now, so y’all come!
http://www.mzbulbfall.com/sp.asp?c=105
My faves are: ‘Elvas’, ‘Rilona’ and anything RED! :)