This is my first year growing any canna. I planted about 10 and most grew fine. Two have now started to bloom this week. In zone 5 is this when I should routinely expect blooms, (mid to late August) and is bloom time likely to be the same if planted in the same place next year? It seems if I dig them up and re-plant in the spring then every year is "the first year". I had expected them to be bigger plants and bloom earlier, so I am not certain I would plant in the same area. The tallest is about 4-5 feet at the flower. Most are not red-leaf. They are planted about 2 feet apart. Thanks.