Just spent my first summer here in northern zone 6 with a beautiful balcony garden. I want to overwinter some plants, but I'm unsure on how to do it. I would *really* appreciate advice on what to do since I've never overwintered.
Everything is in containers.
I have several south-ish facing windows that get several hours of sun.
Our apartment balcony is on the 3rd floor. It's covered, surrounded by walls on 3 sides, and set into the building about 4 feet.
I have an unheated utility closet off the balcony that receives no sunlight.
Here is what I want to overwinter:
Hibiscus (tiny little guy, brought him in last night)
Wax begonia (as a few long arms protruding out, not sure if I should trim back or not)
Oregano (currently in one of those mossy hanging baskets with two annual herbs so he'll need repotting)
Strawberry (debating on if this would be worth the trouble or not)
Annual geranium (long shot probably, but I read sometimes they'll overwinter indoors).
If it's not too much trouble, could someone kindly give me advise on where I should put these guys and if they should be covered or not? I have some larger pots with tomatoes in them now that I could use to bury some pots if that's best for them. I really am clueless.