I recommend these hanging planters. They have a reservoir in the bottom so you don’t over/under water them. My basil, lavender, oregano and geranium (Pelargonium) have done really well in them in my north facing balcony. The oregano survived the winter but just barely. I also have big pots with Emerald Green Arborvitae ‘Smaragd’ (Thuja Occidentalis) and Star Jasmine (Trachelospermum) growing around the railing, both which were fine through the winter. Make sure they have drain pans, otherwise the roots will rot. I water nearly every day though. I sent you a PM with pictures.