Grow sweet strawberry in a vertical PVC tube is great solution for small garden or yard. Vertical planter will save you a lot of space, at the same time keep plants out of reach from garden insect pests AND enable you to switch to hydroponics.
Build A $300 Underground Greenhouse “Walipini” That Grows Food Year Round - There is some serious back work in making one of these. You will have to do some digging. Or you could get the help of modern equipment. Either way you are looking at creating a green house that will not need to be heated over the cold winter and will allow you to grow food at anytime during the year.