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Urban Hiker SF’s Urban Foraging Field Guide

Links and photos refreshed 7/29/2025

 

Urban Hiker SF has been around for a few months now, and since I started my company, I've become much more connected with the city. For the first time in my life, I notice minute architectural details, hidden alleyways, and even plants.

 

I had never been a plant person, but one day, as I walked around the city with my father, a lifetime plant lover, he pointed out a nasturtium plant and told me it was edible. Now he had my attention: as a foodie, I find plants infinitely more interesting when I also see them as food. Now that I know what to look for, I see numerous edible plants daily on my hikes. While the summer's blackberries and plums have disappeared until next spring, there are several other edible plants around the Bay Area that you can enjoy year-round. Here's a mini field guide to help you on your urban foraging expeditions.

 

1. Nasturtium 

You can identify nasturtiums by their jewel-toned yellow, orange, and red flowers, as well as by their lilypad-shaped leaves. You can enjoy these flowers as a colorful and spicy salad topper, and you can also eat the leaves. I'm intrigued by this nasturtium pesto recipe that makes use of both parts of the plant.

  

2. Fennel

Fennel is easy to spot with its long stalk, feathery dill-like leaves, and yellow flowers. You can also often smell the plant's licorice scent before you see it. In restaurants, you're most often eating the fennel bulb, but on hiking trails, it's much easier to eat the flowers and seeds. These above-ground parts of the plant have a lovely anise flavor and act as a great natural breath freshener. It looks a little daunting to make, but I want to make this fennel seed loaf cake.


3. Lavender  

There are multiple lavender varieties all over the city, including English and Spanish. An easy way to make sure you're dealing with lavender and not something like Mexican Bush Sage, which is not edible, is to give the plant a pinch and sniff your fingers. You've hit 'purple gold' if you smell the signature lavender smell. Most people don't eat lavender by itself, so inspired by the Bi-Rite honey lavender ice cream flavor, I've taken to making these lavender shortbread cookies. If you don't want to pick lavender from the street, you can buy a bag of lavender flowers at the San Francisco Herb Company on 14th Street. 

 

4. Rosemary

If you're not seeing rosemary everywhere in the city, you may not be looking hard enough. I've seen rosemary in almost every neighborhood; sometimes it can dominate entire walls and gardens. As with lavender, there are many varieties of rosemary: it can be "creeping," it can grow as a bush, and it can feature blue, pink, or white flowers. Since there are so many types of rosemary, do a sniff test before you eat to make sure you've got the right plant. Lately, I've been using rosemary to make thesedelicious biscuits. 

 

Before you head out into the streets and woods, remember that foraging can quickly become dangerous if you accidentally ingest the wrong plant. To stay safe, you should be meticulous in your plant identification.

Once you know you're indeed dealing with an edible plant, enjoy! The city is your salad, so get outside and start snacking.

 

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