I agree with deluxestogie and SmokesAhoy. Get your tobacco fully color cured, and the fat wet stems dried out before kilning. If you put the tobacco in the kiln with a little green left in it, the finished product may retain same said green. (been there, done that!) Green tobacco is un-smokable trash to be thrown away. (been there, and done that too) I still have a string of green flash hanging around in my basement left over from last year. It is completely unusable, and I just haven't gotten around to throwing it out yet. 50 wasted leaves in the trash mostly because of inexperience.
Tobacco is kind of like salt in food. You can always add more salt if you want it, but it is very hard to get the salt out of your dish when you've put too much in there. Same way with tobacco, if it gets a little dry and crispy, you can always add a little water to re-hydrate it.
Good luck, and happy burning!
Wes H.
Post some pictures of your curing tobacco!