The Q&A Archives: Deck flower boxes

Question: I plant new spring plants in my deck boxes every spring. There are 8 of them and they are the size of a typical window box. I plant Thyme, Basil, Rosemary, Mint etc... in the first 2 and the flowers in all the others. Prim ROse, Begonia, Columbine, etc...Do I have to pull them out and replant every spring. Or can I leave them in the boxes and cut them back and epect them to bloom again next year?

Answer: Most plants will not overwinter well in containers or planter boxes because their roots freeze during the winter months. You can plan on replacing the plants every spring (perennials included) or you can remove the perennials in the fall, pot them up into individual containers and bury the containers in the garden in a protected place. The soil around the containers will help insulate them and keep the roots alive. In the spring you can replant them in your deck boxes. Best wishes with your plants!

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