This is also a great idea for starting seeds as the moisture comes from the bottom, thus eliminating the fungus that kills many seedlings when you water from the top.need to bottles tho and I don't drink soft drinks.
Growing fresh herbs in your kitchen. Great idea fill Mason jar with water use wine bottle cut off bottom run string down neck of wine bottle to wick water. Takes a few days before wicking kicks in. Great for herbs in the kitchen window.