Horticultural Happenings™

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  • Clarkia Flower Festival

    UCLA Mildred E. Mathias Botanical Garden 707 Tiverton Drive, Los Angeles, California, United States

    Get ready for the most vibrant event of the year: the Clarkia Flower Festival! Mark your calendars and invite your friend to join us for a fun-filled day celebrating nature and community. Join us on Saturday, May 16 from 10 am to 4 pm for an unforgettable celebration featuring exciting nature activities, a lively beer […]

  • 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 […]

  • 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 […]

  • 17th Annual Serviceberry Festival

    Heartwood Nursery 8957 Hickory Road, Felton, PA

    We invite you to our free, family-friendly celebration of the native Serviceberry tree and its delicious fruit! Come for a relaxing day of fun and food, including free tastings of […]

  • Summer Harvest Days

    Summer Harvest Days
    Minnesota Landscape Arboretum 3675 Arboretum Drive, Chaska, Minnesota, United States

    Celebrate the growing season and Minnesota crops at the Farm at the Arb. With a new crop ripe for the reaping each Saturday, you will learn about — and even […]

  • Garden Learning Series: A Guide to Gardening with Children

    Smith-Gilbert Gardens 2382 Pine Mountain Road, Kennesaw, Georgia, United States

    Join our Horticulture Technician, Kelsey Apple, for a hands-on workshop designed to help parents, caregivers, and teachers confidently garden with children. Participants will learn the basics of setting up healthy […]

  • Pollinator Workshop for Jr. Citizen Scientists

    Smith-Gilbert Gardens 2382 Pine Mountain Road, Kennesaw, Georgia, United States

    Be a citizen scientist and make pollinator history! Participate this summer by helping the University of Georgia document our pollinators! Join Smith-Gilbert Gardens in a workshop that introduces insect pollinator […]

  • Arboretum Expo 2026: Tree Day and Plant Sale

    University of Guelph Arboretum College Avenue East, Guelph, Ontario, Canada

    A community celebration of trees and the many exciting things happening in the Arboretum lands! Join us for tours of the grounds, trails, gardens, research projects, tree climbing demonstrations, and an in-person plant sale. Take home an interesting woody plant, grown in the Arboretum greenhouse and tended to by our dedicated staff and volunteers. The […]

  • Fungi Foray

    John Hay Estate at The Fells 456 Route 103A, Newbury, New Hampshire, United States

    Join Jess Whitaker, President of the Sunapee Region Mycology Club, for an informative presentation about mushrooms, followed by an identification walk on our woodland and lakeshore hiking trails. This annual […]