Sometimes there is such a thing as a free lunch, which was the case for us yesterday after discovering a large stand of white mustard (Sinapis alba) growing at the end of a nearby dead end street. Mustard grows all over the neighborhood, but rarely in a place out of dog pee range like this little patch. Classified by the USDA as a noxious weed, the leaves have a pleasant and pungent flavor and can be eaten raw or cooked. From the Plants for a Future database entry:

“Leaves . . . A hot pungent flavour, especially if eaten raw. Young leaves are used as a flavouring in mixed salads, whilst older leaves are used as a potherb. Seed – sprouted and eaten raw. The seed takes about 4 days to be ready. A hot flavour, it is often used in salads. A nutritional analysis is available. The seed can be ground into a powder and used as a food flavouring, it is the ‘white mustard’ of commerce . . . The pungency of mustard develops when cold water is added to the ground-up seed – an enzyme (myrosin) acts on a glycoside (sinigrin) to produce a sulphur compound. The reaction takes 10 – 15 minutes. Mixing with hot water or vinegar, or adding salt, inhibits the enzyme and produces a mild bitter mustard.”

And speaking of urban foraging, we’ve been inspired by our visitor from Chicago, Nancy Klehm. Hear an interview with her, “Foraging for Food on the Streets of L.A.“, on Weekend America. Happy foraging . . .

My native Los Angeles and Houston, where Homegrown Evolution is in temporary residence, have a lot in common. Both are real cities, unlike the Disneyfied theme parks that New York and San Francisco have become. Both Houston and Los Angeles have lots of heavy industry and working ports. Visit the docks in Manhattan or San Francisco and you’ll find expensive restaurants and boutiques. Like the port of Los Angeles, along Houston’s Bayous you’ll find refineries, factories and scrap metal yards. And both L.A. and Houston have clogged mega-freeways.

Add to these parallels, an abundance of Arundo dorax, a giant invasive reed known by the popular name, Carrizo. According to Delena Tull’s excellent book, Edible and Useful Plants of Texas and the Southwest, Arundo dorax seeds can be ground into a flour, the young shoots are edible and a kind of candy can be made from the stems. Just like bamboo, the tough stems make excellent building materials, which is why the plant was originally imported to California in the early 19th century.

Arudo dorax often finds a home alongside river banks, and in Los Angeles massive amounts of it wash up on the beach after big storms. The plant’s prodigious spread and ability to crowd out native species puts it on many a bad-ass plant list. Homegrown Evolution’s attitude is–like it or not it’s here, so we might as well learn to work with it, just like the folks I saw the other day who repurposed this abandoned (and wind damaged!) gas station for an impromptu barbecue.

Sadly I wasn’t able to get a picture of them, but the BBQ smelled good.

While walking along Houston’s Buffalo Bayou, just next to a concrete plant and under a bridge we stumbled on some feral tomatoes. We theorized that some fast food meal pitched in the gutter found it’s way into this meandering, heavily industrialized waterway. The tomatoes separated from the cheeseburger, floated to the surface of the water and were deposited on the muddy banks of the bayou. Houston’s hot and humid climate sprouted the seeds and the result is the plant below.

Back with more foraging tales soon once we’ve returned from Texas.