I have the orange bird of paradise. i would never in my wildest dreams keep a white bird of paradise because of the size issues stated.
T5 lights are for the sunleaves lighting system as far as i know, you can buy these at roots hydro ogranics. its a store located in st paul, Red spectrum bulbs do flowers while green does foliage. different colors do different things so a red/green combo plus outdoor sun in summer might work. i just worry having it outside in my kind of neighborhood will simply result in some guy stealing it.
I had this happen with a pot of strawberries in a more well to do neighborhood when i was a kid.
i figure the white bear community garden would be the best/safest place to grow it outdoors., the only problem is its far away to drive and getting a plant there and back would be a hurdle. esspically as it grows in size. maybe at the MSS gardens on ocean street but again its in a bad neighborhood plus they might mow and knock it over/ect. I'll have to talk with staff at MSS to see if its an issue. they may lock it up at night.