How much exposure to sub-freezing temps can a rosemary plant survive? Coming and going into the Wayzata HS building as a substitute teacher, I noticed a few container gardens out front. I admired a rosemary plant about 1' x 2'. As temps dropped the past week, I expected someone to bring it inside. I received permission today to "rescue" it. (See photo) It was planted in a circular container that was set on the concrete surface. I loosened the soil and was careful to avoid any roots. The dirt "ball" was initially 2' x 1'. The photo shows the standard office paper box's sides bulging out. I have a poor track record with rosemary plants indoors. I have purchased worm castings and cactus mix, used turkey grit, terra cotta pot shards, hydroballs, then sand over time. I've read that rosemary grows on rocky outcrops in Mediterranean countries and that it does not like it's "feet wet". None have survived. Does this one even have a chance, given the low temps in the past weeks? I would appreciate information on how to help this rosemary to good health and how to succeed in keeping it healthy for years. In the past, rosemary plants have spent the summer outside, still in their pots, then brought in before the first frost. Thank you! - - Jo Sueker