Questions Answered Series: How To Grow Coneflower (Echinacea) How to Become a Plant Parent The New York Times Philodendron subincisum, formerly and still widely known as Philodendron wilsonii, is growing too fast. This good looking climber can grow really big! The large leaves of this very easy grower can reach Philodendron Imperial Green Artemisia absinthium or Wormwood, closeup of the plant silvery green leaves. Herb and medicinal plant used in Chinese traditional medicine and in herb Stock Photo Alamy