• Production tips for top performers: Chasmanthium latifolium

    Published on March 29, 2008
    Commercial production information, based on research at Michigan State University, is presented on the native perennial grass northern sea oats (Chasmanthium).

  • Production tips for top performers: Geranium 'Rozanne'

    Published on February 29, 2008
    Commercial production information, based on research at Michigan State University, is presented on the herbaceous perennial Geranium 'Rozanne'.

  • Vernalizing perennials

    Published on September 29, 2007
    For some cold-hardy perennials, a cold treatment (vernalization) is the key to initiate flowering. Here are tips for successful cold treatments of herbaceous perennials.

  • Evaluating new Echinacea cultivars

    Published on June 29, 2007
    Research-based production information, generated at Michigan State University, is provided on about 20 cultivars of the herbaceous perennial Echinacea.

  • Improving perennial flower (Vernalization part 5)

    Published on June 29, 2006
    In part 5 of a 5-part series of articles on vernalization of herbaceous perennials, this article discusses plants in which a cold treatment accelerates or improves flowering, but is not necessarily required for flowering.

  • Life after cold! (Vernalization part 4)

    Published on May 29, 2006
    In part 4 of a 5-part series of articles on vernalization of herbaceous perennials, this article discusses plants in which a cold treatment and subsequent long photoperiods are needed for rapid and uniform flowering.

  • Day-neutral vernalization (Vernalization part 3)

    Published on March 29, 2006
    In part 3 of a 5-part series of articles on vernalization of herbaceous perennials, this article discusses plants in which flowering is triggered by a cold treatment but not by photoperiod (or day length).

  • Vernalization: Life in the cold (Vernalization part 2)

    Published on January 29, 2006
    In part 2 of a 5-part series of articles on vernalization of herbaceous perennials, this article discusses juvenility and different methods of delivering cold treatments to plants.

  • Cool Campanula

    Published on October 29, 2005
    This article presents research-based information on the production of a wide variety of campanula as potted flowering plants, including responses to vernalization (cold) treatments and photoperiod (day length).

  • Some perennials like it cold (Vernalization part 1)

    Published on October 29, 2005
    In part 1 of a 5-part series of articles on vernalization of herbaceous perennials, this article provides an overview of cold treatments needed for uniform flowering.