Spider lilies

[Bunbun0412]

I have some spider lilies that I am keeping inside and it has taken root and it has been like that for a few weeks so I was wondering if anyone knew when they should sprout.

 

[casportpony]

Does this help?
https://homeguides.sfgate.com/spider-lily-planting-instructions-65179.html

 

[Artichoke Lover]

I think spider lilies need a cold period to sprout and bloom. How do you know it has roots?