With whitewoods you can go ahead and rough a bow out to where it just starts to bend and put back to dry. If keep in the house this time of year then in about month you can start tillering it out. Remember, just dry wood isn't the same as seasoned wood. But you can't get the seasoning process going till you get 'er dried out.
You can however make a bow once the roughed out bow is dry but the more seasoning time the better IMO....Art