I recently posted an update on the grown-from-seed tree seedlings that I've been nurturing for the past few years and included the oak trees that are from acorns that I collected last Fall . Last year, I collected a variety of tree species - various oaks, chestnuts and even an Illinois Pecan and stashed them in the fridge to cold stratify. That lead me to what I'd describe as 'mixed' results. I have had quite a few seeds turn into seedlings, but because it was a mixed-bag, I am (somewhat) guessing on the variety of the tree and where I picked it from (a park? Our block? Up in Wisconsin?) when I took the acorns. But, I've enjoyed that seedling-growing process. So, this year, I'm simplifying things. I'm only going to keep ONE variety of acorns over winter. What tree is that, you might be asking? The answer is: I'm not sure. But, I do, indeed, know that it is a columnar oak tree that is planted along Maple Avenue near downtown Downers Grove.