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October 2026
- Oct 17, 2026 Butterfly Walks Oct 17, 2026
- Oct 15, 2026 Family-Friendly CA Native People & Plants Tour Oct 15, 2026
- Oct 3, 2026 Fall Plant Sale Oct 3, 2026
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September 2026
- Sep 13, 2026 Butterfly Walks Sep 13, 2026
- Sep 12, 2026 iNaturalist 101 Sep 12, 2026
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August 2026
- Aug 23, 2026 Family-Friendly Sensory Tour Aug 23, 2026
- Aug 22, 2026 Friends 30th Anniversary Celebration Aug 22, 2026
- Aug 19, 2026 Butterfly Walks Aug 19, 2026
- Aug 16, 2026 Butterfly Walks Aug 16, 2026
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July 2026
- Jul 22, 2026 Butterfly Walks Jul 22, 2026
- Jul 19, 2026 Butterfly Walks Jul 19, 2026
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June 2026
- Jun 20, 2026 Butterfly Walks Jun 20, 2026
- Jun 17, 2026 Butterfly Walks Jun 17, 2026
- Jun 6, 2026 EBMUD Public Garden Open House Jun 6, 2026
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May 2026
- May 17, 2026 Butterfly Walks May 17, 2026
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April 2026
- Apr 19, 2026 Butterfly Walks Apr 19, 2026
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March 2026
- Mar 22, 2026 Drawing and Painting Wildflowers Throughout the West Mar 22, 2026
- Mar 21, 2026 2-Day Botanical Watercolor Workshop Mar 21, 2026
- Mar 20, 2026 Drawing and Painting Wildflowers Throughout the West Mar 20, 2026
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February 2026
- Feb 28, 2026 Wayne Roderick Lecture: Botanizing Mt. Williamson and Environs Feb 28, 2026
- Feb 21, 2026 Wayne Roderick Lecture: Succulents and Bulbs of South Africa Feb 21, 2026
- Feb 14, 2026 Wayne Roderick Lecture: The CNPS 2026 Conference Feb 14, 2026
- Feb 8, 2026 Lichen Walk Feb 8, 2026
- Feb 7, 2026 Wayne Roderick Lecture: Amanitarita's Freaky and Fabulous Fungi Feb 7, 2026
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January 2026
- Jan 31, 2026 Wayne Roderick Lecture: Lichens Jan 31, 2026
- Jan 24, 2026 Wayne Roderick Lecture: The Path to Speciation Jan 24, 2026
- Jan 17, 2026 Wayne Roderick Lecture: The Watershed Project; Wildcat Creek & More Jan 17, 2026
- Jan 10, 2026 Wayne Roderick Lecture: Images and Tales from Iceland Jan 10, 2026
- Jan 3, 2026 Wayne Roderick Lecture: Patagonian Flora Highlights Jan 3, 2026
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December 2025
- Dec 20, 2025 Wayne Roderick Lecture: Alpines of Berthoud Pass Dec 20, 2025
- Dec 13, 2025 Lichen Walk Dec 13, 2025
- Dec 13, 2025 Wayne Roderick Lecture: Flora of New Zealand Dec 13, 2025
- Dec 6, 2025 Wayne Roderick Lecture: Flora of Western Australia Dec 6, 2025
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November 2025
- Nov 15, 2025 Wayne Roderick Lecture: Flora of Crystal Springs Watershed Nov 15, 2025
- Nov 8, 2025 Wayne Roderick Lecture: Milkweeds of the United States Nov 8, 2025
- Nov 1, 2025 Botanical and Horticultural Potpourri: What’s Occupied My Mind This Past Year Nov 1, 2025
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September 2025
- Sep 28, 2025 September Butterfly Walks Sep 28, 2025
- Sep 27, 2025 ASL Butterfly Walk Sep 27, 2025
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August 2025
- Aug 28, 2025 Twilight Bat Walk Aug 28, 2025
- Aug 23, 2025 August Butterfly Walks Aug 23, 2025
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July 2025
- Jul 23, 2025 July Butterfly Walks Jul 23, 2025
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June 2025
- Jun 21, 2025 Butterfly Walk Jun 21, 2025
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May 2025
- May 4, 2025 Pollination of California Native Plants May 4, 2025
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April 2025
- Apr 19, 2025 Spring Plant Sale Apr 19, 2025
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March 2025
- Mar 1, 2025 New Zealand Plants & Gardens Mar 1, 2025
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February 2025
- Feb 22, 2025 Calochortus Treasure Hunt: CA Feb 22, 2025
- Feb 15, 2025 Lichen Walk Feb 15, 2025
- Feb 15, 2025 The Chemistry of Weeds Feb 15, 2025
- Feb 8, 2025 Beartooth Range in Montana Feb 8, 2025
- Feb 1, 2025 The High Line: Wild by Design Feb 1, 2025
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January 2025
- Jan 25, 2025 The California-Colorado Connection Jan 25, 2025
- Jan 18, 2025 Six Months of Wanderings in CA & Beyond Jan 18, 2025
- Jan 11, 2025 Plants of the Pacific Crest Trail Jan 11, 2025
- Jan 4, 2025 CA Cultivars Selected by Carol Bornstein Jan 4, 2025
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December 2024
- Dec 21, 2024 Flora of the Hawaiian Islands Dec 21, 2024
- Dec 14, 2024 Bulbs from Dry Summer Climates Dec 14, 2024
- Dec 7, 2024 Redwoods and Their Relatives Dec 7, 2024
- Dec 1, 2024 Botanizing California Dec 1, 2024
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November 2024
- Nov 23, 2024 Climbing Trees for Research Nov 23, 2024
- Nov 2, 2024 Poppy Talk Nov 2, 2024