Richard Hawke

  • growing summer allium
    How-To

    Growing Summer Alliums: Conditions and Care

    When given proper conditions and care, summer alliums are stellar, reliable performers in the landscape. Here are some insights into growing summer alliums that can help you manage and enjoy…

  • summer alliums
    Design

    The Best Summer Alliums to Grow: Plant Trial Results

    Some years ago, during a midsummer trip to Wisconsin, I found myself transfixed by a vast planting of ‘Summer Beauty’ allium dotted throughout with taller bright pink coneflowers (Echinacea spp.…

  • new summer alliums
    Design

    Noteworthy New Summer Alliums

    Although too new to our trial to be fully evaluated, these notable alliums are worthy of praise. Keep an eye out for them when you're at your local garden center…

  • How to Grow and Care for Ninebark Shrubs
    How-To

    How to Grow and Care for Ninebark Shrubs

    A low-maintenance native shrub, ninebark grows best in full sun to light shade. Although it prefers evenly moist, well-drained soil, it is adaptable to rocky and clay soils and is…

  • The Best Ninebark Shrubs for the Garden
    How-To

    The Best Ninebark Shrubs for the Garden

    Common ninebark (Physocarpus opulifolius) is one of those shrubs that I learned about in college and then forgot about until sometime around the Millennium, when purple-leaved Diabolo® transformed a humble…

  • Sweet Cherry Tea™
    Design

    Brand-New Ninebark Shrubs Showing Promise

    The compact ninebarks intrigue me—their reduced sizes and refined habits are made for small urban gardens like mine. And they challenge the notion that ninebarks are all coarse or tangled shrubs.…

  • new burnets
    Design

    These New Burnets Deserve Your Attention

    These burnets are new on the scene, but they're already showing promise. ‘Blackthorn’ burnet Robust ‘Blackthorn’ burnet (S. ‘Blackthorn’) was one of the largest of all the burnets after just…

  • growing burnets
    How-To

    Get to Know Burnets

    Burnets are easy to grow, have great textural foliage, stay mostly disease-free, and put on a supremely unique bloom show from summer into fall, when much of the garden looks…

  • Oriental burnet
    Design

    Burnets Are Tough and Beautiful Plants

    I have no recollection of burnets—native or cultivated—before my back-to-back encounters with great burnet (Sanguisorba officinalis) in the South Korean countryside and on the grassy steppes of Siberia. The sight…

  • Deadheading.
    How-To

    How to Grow Lambs’ Ears and Betony

    Lambs’ ears and betonies are easy to grow in full sun to light shade in well-drained soil, but betonies like the soil consistently moist, and lambs’ ears prefer it on…