Napa Valley has a unique plant growing along its waterways, especially along the Napa River. It is Dutchman’s pipevine (Aristolochia californica) and it is native to California. This plant, one of ...

The fuzzy green buds are already swelling on my Dutchman's pipe, one of those reminders that California grows in the winter, too. I planted it several years ago in the fond hope of attracting the ...

The air traffic is thick overhead at the Hallberg Butterfly Gardens. The Pipevine Swallowtails that inspired the late Louise Hallberg to devote her garden to butterflies, are fluttering about filling ...

Black swallowtail larva on fennel (top left), pipevine swallowtail larva on Dutchman's pipe vine (top right), swallowtail butterfly on zinnia (bottom). Q: My kids love swallowtail butterflies. Can you ...