Pot worms, white worms, or Enchytraeids. Breaking down organic matter in the top layer of soil The first land plants appeared as early as 470 million years ago initially as tiny patches of green on bare rock. Later, a major breakthrough began, and around 420 million years ago plants started Trex Deck with Built In Planters Maggie Overby Studios Here are 3 fast growing hedge plants that we have loved (both at this house and our last place):, 1. Viburnum Tinus we had these at our last place too, I swear every time I look at them they are Gibberellic Acid or Gibberellin Hormones PDF