There's also some all yellow ones and one with purple/yellow. I've never seen, or heard of a white either.
Gloriosa Lily (Gloriosa superba 'Greenii')
Gloriosa Lily (Gloriosa superba 'Lutea')
Gloriosa Lily (Gloriosa carsonii)
I grow mine in pots that are overwintered dry in the basement.
And, welcome to the site.
Vendors affiliated with this site (and other sites) include Brent and Becky's Bulbs and Easy To Grow Bulbs
https://brentandbeckysbulbs.co...
http://www.easytogrowbulbs.com... (This site has a larger selection)