Best Landscape advise To Your Questions.What are the best perennials for Long Island?
Suggesting plant material is a personal preference. One designer could list you a number of perennials that another designer would shoot down. So what I am going to do is list some perennials by their attributes to help you better understand what perennials can offer you.
I think the best perennials for Long Island are the ones that bloom the longest in the optimal months of summer. So I have compiled a list of the longest blooming perennials such as: Achillea ‘Moonshine or yarrow, Astilbe also called false spirea – these come in many different colors and are great for shade, Coreopsis which has small daisy like flowers that come in a variety of yellows and now oranges, Echinacea better known as the purple coneflower, Gaillardia ‘Goblin’ which showcases a red center with orange and yellow petals, Hemorocallis or Daylily’s this are great they produce flowers constantly through out the entire summer, Heuchera which has deeply veined purple, green and orange foliage, Lavandula, Lythrum, Nepeta, Russian Sage, Phlox, Rudbeckia hirta ‘Black Eyed Susan’ these bloom a little later in the summer than the rest, Salvia and Sedum which is the latest bloomer of them all.
All of these perennials have different looks, textures and of course heights, so when you are planting your perennial bed you want to keep these things in mind.