I have a grape arbor on the South side of my house and have two varieties of green grapes that we have made juice from. I don't know what they are but I have room for two more and would like to plant purple or a dark variety of a table or eating fresh type. I live in Junction City on a small lot. What would be a good fit for my space.
Lane County Oregon
Thanks for your question about growing grapes. There is not really any difference in the size of grapevines (except for some dwarf varieties for small spaces that are more ornamental than useful), so you should just plant the kinds you want to grow. I think you'll find this Extension publication EC1639, Growing Table Grapes, very useful both in choosing varieties and taking care of them.