There was a movie I saw in the late 80s I believe that was a preteen kind of movie, I believe. It was the typical witch chasing heroine plot, but I don't remember a lot of the details. I was pretty young. All I remember is that in one part of the movie there's a sort of glass dome... a vase cover almost, that covers either the "witch" or the flower that the "witch" needs or something of the sort. I know these are less informative details, but I'm hoping maybe someone has a clue. Thanks. :)

Would you be thinking of the HugaBunch movie? I think there was a part in that movie like that.
The young girl goes through the mirror to the land of these babylike puppets to get 'young berries' for her dying grandmother from the evil witch.
Hope that helps.

It could have been "The Witches" from 1990.

http://www.imdb.com/title/tt0100944/