Everyday excursions in the urban landscape

Vacant Lands installation in SF

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The site for the first Vacant Lands installation by Prairieform in San Francisco's Presidio.

We are spectacularly thrilled to announce that we will be doing our first Vacant Lands installation right here in San Francisco. The installation will be featured as part of the Architecture as Pedestal exhibition, which will be held on October 29 and 30 in the Presidio. To see a video of the site with the glorious fog rolling in, you may visit our Instagram page HERE.

Wantonly Weedy Wednesday

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An illustration of Hypochaeris radicata, a drought-tolerant, dandelion-like weed that people believe to be originally from Morocco

Hypochaeris radicata, aka cat’s ear or false dandelion, is a wildly prolific plant that has asserted its weedy dominance across much of the globe, now calling Europe, the Americas, Japan, Australia, New Zealand, and Southern Africa home. Originally thought to be native to the Mediterranean regions of Europe, the plant is now thought to be originally from Morocco and then to have made its way northward via human activities such as shipping, trade, and exploration. All parts of the plant are edible, particularly its roots. The larvae of several species of moth call the plant chow, and bees are attracted to its yellow flowers. The plant was discovered in the Vacant Lands Broakland Study Area growing within an unirrigated median on Adeline Street.

Drought-tolerant salad, anyone?

For more info, click here.

John Kamp

Wantonly Weedy Wednesday

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Avena fatua, an annual grass and weed found in the Prairieform Vacantlands Broakland study area, Berkeley, California

We have chosen wild oat (Avena fatua) as our first wanton weed of the Wantonly Weedy Wednesday series. The choice is in part due to the fact that Avena fatua is just such a ubiquitous part of the California landscape. Those golden hillsides you see throughout much of the state are actually painted that color by way of vast seas of Avena fatua, which is non-native annual that has, believe it or not, been present in California for over 200 years. The grass originally made its way to North America as a crop contaminant and can now be found growing in all 50 states. As it is an annual and an aggressive seeder and self-sower, it can quite successfully outcompete native perennial grass populations, particularly in areas that are heavily grazed or disturbed. However, given the fact that it has been found in California since the late 1700s, can we still consider it a non-native grass? At what point does it become native? After 300 years? 400? We have no answers to these questions but merely pose them as wantonly weedy food for thought. Talk amongst yourselves; discuss. For further reading and exploration, click HERE.

John Kamp

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