Hi Moe. That is probably about right. Where do you live and what conditions are you growing them in?
I know the ones that came up in my raised beds from the Sedum 'Blue Spruce' took awhile to get going. They just stayed like little embryo seedlings, until one day they started taking off growing.
Will be interesting to see if your Voodoo comes true from seed. Can you post us some photos? We would love to watch them grow.