Here at my place (Southern Middle TN)...
When redbuds are blooming, a lot of my first year 3 leafers are coming up and by the time dogwoods are blooming I would say 80-90% of those are up.
The older plants, including older wild plants start emerging about the time that dogwoods are finishing up their blooming period.
I bet it will be about the same for you.
I usually do some wild ginseng scouting in June each year. July and August here are uaually very hot.
It is not un-usual to find several nice plants up in June that will not be standing come harvest time (for one) becasue of deer eating the tops.
I like to mark nice patches or plants with my GPS good and have returned in the fall to find not top left, but could still locate the stems where the tops had been browsed by deer.
Below is a pic of a nice group of plants that I marked with my GPS, but this shows what they looked like come harvest time.
If I had not marked them good with my GPS, I would most likely not have found them again in this condition.
TNhunter