I Have What I Believe Are Called Palm Ferns. They…
Linda Asked
I have what I believe are called palm ferns. They are 2 years old and potted. I brought them indoors last winter. Can I leave them outdoors from now on and what would I have to do to protect/maintain them over winter and get them growing again come spring?
The Gardener’s Answer
Hello, Linda: If what you are growing are indeed palm ferns (Blechnum appendiculatum) they will have to come indoors for the winter. These are tropical ferns hardy in gardening zones 9-11 so even protecting them outdoors they would not survive. If you want to keep them you will have to over-winter them indoors like you did last year. Ferns in general can be messy plants to bring inside; they tend to drop their foliage. If you have a basement with a window this would be ideal; that way if they make a mess it is not constant upkeep. You could also put a piece of plastic under the ferns for easy cleanup. If you do not have a space with good light an inexpensive shop light with a fluorescent bulb will work just as well. Another option is to cut the foliage back when you bring your ferns inside. It will take them longer to put on new growth in the spring but you will not be picking up debris all winter long. When we bring our plants inside for the winter we have to keep in mind that the light levels are much lower so the plants will not require as much moisture. The can be watered every seven to 10 days depending on the temperature and humidity of your home. They will not need fertilizer during this time but they will benefit from additional nutrients come spring. They can be taken out after the frost-free date for your area passes.
