Giant Inula or Magnificent Elecampane | Jacob is at it again in the nursery. You show him a big perennial and he is going to like it. Maturing at 6 feet tall and nearly as wide this is a perfect plant to put in the back of the border. Or, like Jacob would do, even in the front of the border! You just have to put your 7 and 8 feet tall plants behind it! Large, bold leaves have equally large and bold yellow flowers that can be nearly 6" across. Attractive to pollinators and also a plant that can be placed in marginal or boggy areas of the garden.