Robin Y. Rivet

Monthly Meeting

Celebrating The Horticulturist Of The Year 2026

NEXT MEETING: Celebrating Horticulturist Of The Year 2026, Nancy Carol Carter, On January 17, From 1:30p - 3:30p At Oasis Rancho Bernardo (Upstairs In The Grand Assembly Hall)

Nancy Carol Carter. Celebrating the Horticulturist of the Year for 2026 Nancy Carol Carter. Join us on January 17, from 1:30p - 3:30p, at Oasis Rancho Bernardo (Note: this meeting will be held upstairs in the Grand Assembly Hall and not in our regular room downstairs.) Online registration required - SD Hort Member (and their guest) registration is FREE and in-person non-member registration is $15.00 (Consider joining or renewing with the San Diego Horticultural Society fo

Jan 1

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Articles

TREES, PLEASE! Urban Tree Observations: Conks, Stains, Saps And Bugs

By Robin Y. Rivet, for Let’s Talk Plants! December 2025. Turkey Tails - Trametes versicolor - fruiting body on rotting tree log. Bernard Spragg – Flickr Pro: https://www.flickr.com/photos/volvob12b/41856600312 . Urban Tree Observations: Conks, Stains, Saps and Bugs In October, I wrote about abiotic tree mishaps – especially those inflicted on urban trees by well-meaning humans. Many were preventable, so please re-read that essay if you’re a DIYer, as many of those failures

Dec 1, 2025

TREES, PLEASE! Is That Tree Really Sick?

By Robin Y. Rivet, for Let's Talk Plants! October 2025. Jacaranda tree loses its foliage before blooming in May. Nearby trees have already leafed out. "SelecTree. UFEI. " Jacaranda mimosifolia Tree Record." 1995-2025. Cal Poly State University, San Luis Obispo. Is That Tree Really Sick? “I think my tree is dying”. Sadly, this is a common lament for far too many residents. Decline of urban trees often arises from largely preventable abiotic causes. Environmentally stressed tr

Sep 30, 2025