I understand your concern. At the time I wrote the article, the authors for Dave's Garden were encoraged to use key words that often appear in Google searches and other search engines. Oddly, "Pineapple Tree" was a frequently searched term. I agree that there is no connection between a pineapple plant and any sort of tree and don't know why anyone would search for that connection, but I used the term to possibly increase the search engine hits on the article. (It seems to have worked since the article is now over 44,000 views! LOL).
A pineapple crown should do well in a pot of sandy soil on a sunny windowsill in your area. You can move it outside for the summer months. Actually, if you are close to the WA coast, you probably have a similar climate to mine (8b winters/9a summers). My pineapple plants have done well outside in the garden all year except for the last two unusually cold winters with sustained temperatures of 20s F for a week or more.
If you happen to have a farmer's market near you or produce stand, they sometimes have fresh pineapple peelers/corers and toss away the leafy crowns. I haven't yet located such an establishment in my locale, but I've heard they do exist! Lots of free pineapple plants!!
Jeremy , Just received my first letter from Dave , the info you are sending out on growing pineapples is very correct , I lived in Cocoa Beach and Melbourne , Fl. for many years and grew many a good pineapple, just have patience, it takes a while before the fruit grows but when you take your first bite , you will say , It;s better tasting then the one you got from the store...
Thanks, 44mag! I am slowly replenishing my pineapple plantation, 1 crown at a time, when I find pineapple fruit on sale (I'm too frugal to pay more than about $2 for a pineapple fruit LOL). Most of my previous pineapple plants succumbed to the last two winters with very unusual 20s F temperatures for sustained periods of about 2 weeks. I do have one red-leaved pineapple plant (different from red pineapple) that seems to be far more winter hardy.