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Richard Hawke

  • How-To

    The Ins and Outs of Molinia

    Naming issues Research at Kew Gardens in England established that the different foliar traits of Molinia caerulea ssp. caerulea and M. caerulea ssp. arundinacea are cultural rather than genetic, which…

  • How-To

    What’s Wrong with My Coneflower?

    Several diseases and pests affect coneflowers. While your coneflowers may never get any of them, it can be troubling if they do. Powdery mildew This disease typically occurs in overly…

  • Design

    New Kids on the Coneflower Corner

    While perhaps not brand-new, these coneflowers were new to our trials in 2019. They all show great promise with just one year under observation. 1. ‘Julia’ is another lovely coneflower…

  • Design

    What’s New With Coneflowers?

    I think many gardeners oscillate between loving and hating coneflowers—I know I do. It’s a phenomenon I’ve observed for nearly 20 years. I was there at the turn of the…

  • Design

    10 Perennial Standouts for 2020

    The Chicago Botanic Garden’s evaluation program has looked at nearly 10,000 different plants during the past 30 years, most of which were included in one of the more than a…

  • Design

    Terrific Tender Salvias

    Patience is a virtue, as I’ve been reminded too many times. Whether that’s true or not, I waited over 20 years to evaluate tender salvias, which are hardy in warm…

  • How-To

    How to Care for Plants with Taproots

    Digging deeper with taproots There are two main types of roots—taproots and fibrous roots. A taproot is typically a long vertical, somewhat thickened root that is deeply anchored in the…

  • Design

    Bluestar: A Native Plant for the Masses

    In the 1990s there was an electrifying buzz around Arkansas bluestar (Amsonia hubrichtii) that rocketed it from a collector’s plant to a phenomenon in the gardening world. Its alluring blue…

  • Design

    Lady and Painted Ferns—Trial Results

    If you’re like me, you find that plants come in and out of favor all the time. A few years ago, I was all over blue grama grass (Bouteloua gracilis,…

  • Design

    Get to Know Molinia—Trial Results

    Grasses are dynamic garden plants. Whether large or small, for structure, motion, sound, and even light, grasses are unparalleled in their effect, and their charm increases tenfold when massed. Molinia,…

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