I was going to post about Seasons too... I always send my sim the first day of summer. Everything can be found then. Some are spring, summer. Some are summer, fall.
Chamomile and Toxic C can found where the rentals are. It is harder to find one type but they are very easy to see. Fire Ants are also near the rentals and near the public bathroom there.
I think the rest of the others are mostly in the National Forest area, with some overlap in the rental areas.
Walking stick is much more prolific than before in the Hermit's area it shows up in three places that I know of, once again though it shares the same spawn spot as some other bugs. Surprised you got all of the mushrooms... sometimes I have to go to the hermit's area to get one of them.
