Each year we offer nearly 1,500 unique, rare and native perennials for sale, out of the 27,000 taxa in the garden. As we are constantly trialing new plants coming to the market, evaluating underutilized or unknown perennials from around the world, we must retire numerous plants each year to make room in our greenhouses for new treasures. Here are plants being retired at the end of this year, so don't miss out!