You, John Markowski, 44 year old gardener, 7 year blogger, have a gift for writing. If you have written almost daily for seven years, it is a part of you. Look, I am nothing but a fellow writer, but I think you have talent as a writer. You balance just the right amount of you, your subject, knowledge and humor.
Have you had anything published outside of your blog? If not, why not give it a try?