Question
I would like to know how to collect the seeds from the flower for next year. Also
I live in a cold climate - can these be grown indoors during winter?

Answer
Hi Indu,
Thanx for your question.  Wait until the flowers dry and then shake or rub the flower over a white paper plate.  The seeds will be shiny and black like little poppy seeds.  I suppose you could grow cockscomb indoors in the winter but I don't believe it would be a very successful houseplant.  There's nothing saying you can't go ahead and try it if you like.  The thing is, in a cold climate, the sun is weak and these plants like strong, direct sunlight.  I hope this helps.
Tom