Horticultural Happenings™

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  • Spring Symposium 2026: It Starts in Your Backyard: Garden Symposium & Marketplace

    Discover how meaningful change begins right at home at the Penn State Extension Master Gardeners of Washington County Garden Symposium and Marketplace. This year’s theme, “It Starts in Your Backyard,” highlights ways gardeners can create beauty, support wildlife, and promote sustainability, one garden at a time. Attendees can learn from two keynote presentations and choose […]

  • Arbor Day Celebration

    Connecticut College Arboretum 270 Mohegan Avenue Arboretum, New London, Connecticut, United States

    Come celebrate Arbor Day with the Connecticut College Arboretum! Free tree seedling giveaways (while supplies last). Family-friendly tours and activities throughout the day.

  • FONA Garden Fair & Plant Sale

    U.S. National Arboretum 3501 New York Avenue NE, Washington, DC, United States

    Celebrate spring at FONA’s Garden Fair & Plant Sale on Saturday, April 25th! Shop from thousands of plants, get expert gardening advice, browse from 25+ local vendors, and enjoy free family activities. Whether you’re looking for herbs for your apartment balcony or shade-loving perennials for your yard, the Plant Sale tent has great options at […]

  • Pottery Floral Garden Stakes Workshop

    Wellfield Botanic Gardens 1011 North Main Street, Elkhart, Indiana, United States

    Make your own garden flowers that will never fade! In this two session course, you will learn to hand build beautiful floral garden stakes from a slab of clay. An instructor from the Elkhart Art League will teach you the basics of slab hand building—rolling out your slab of clay, applying texture to your slab, […]

  • America Grows: 250 Years of Garden Stories

    Chicago Botanic Garden 1000 Lake Cook Road, Glencoe, Illinois, United States

    To mark the 250th anniversary of U.S. independence, the Chicago Botanic Garden will illuminate the pivotal role gardens have played in the American experience during America Grows: 250 Years of Garden Stories. Starting June 5, visitors are invited to explore gardening movements tied to key moments in history, connecting them to the present day through […]

  • Inviting Vines 2026

    Rogerson Clematis Garden (OR) 125 Rosemont Road, West Linn, Oregon, United States

    Inviting Vines 2026 may be the best ever! The Friends of the Rogerson Clematis Collection will be making the most of an amazing opportunity to share the expertise and friendship of our longtime colleagues from Japan, Mikiyoshi and Tomoko Chikuma, and garden author and naturalist C. Colston Burrell, with clematis lovers throughout the greater Portland […]