SAN FRANCISCO — This spring, the dramatic return of a rare, blue iridescent butterfly dazzled onlookers at the San Francisco Botanical Garden in Golden Gate Park. Neighbor John Gale, who visits the ...

Butterfly gardening is a popular pastime in North Texas. In our ardor to provide sustenance, however, we may be serving up a deadly dish unwittingly. The iridescent black-and-blue pipevine swallowtail ...

CHICO — It’s pipevine swallowtail season, meaning black and orange caterpillars are milling about all through Bidwell Park. Chico Park and Natural Resources Manager Shane Romain is advising park goers ...

Last week I had a picture of a dark form of the eastern tiger swallowtail with my column. The obvious question about any species with more than one color form is: What is the advantage? The advantage ...

Question: In a May 30, 2008 question regarding the toxicity of certain Aristolochia species to pipevine swallowtail larvae, I had heard the same from at a talk from the curator of the Cockrell ...

The explosion of wildflowers throughout March and April ushers in a favorite Sonoma County phenomenon - the emergence of the pipevine swallowtail butterflies. The explosion of wildflowers throughout ...

DEAR JOAN: I have a caterpillar question. I found two large, mostly black guys in my yard — one crawling up the stucco of the house, the other clinging to a pot on the patio. Is this a pipevine ...

Sometimes you place a plant in your garden and forget all about it. That’s how it has been for me with “Aristolochia elegans,” better known as Dutchman’s pipe, pipevine or calico flower. Although I’ve ...

Question: I have heard that a specific pipevine is poisonous to the larva of Pipevine Swallowtails. Is this true? If so, what is the poisonous species of pipevine, and what other types can I plant ...