Native bees offer low effort, high payoff species conservation

By Lauren Lewis You’ve probably seen media about the alarming loss of bees in the last decade or so, and it has most likely been framed as a biodiversity conservation issue. That angle on the issue is misleading because the vast majority of this public attention has been directed, often unknowingly, toward honeybees only. Honeybees are not native to North America and are essentially…

The ecosystem diversity of old SF

By Lauren Lewis and Elisa Baier Before the SF peninsula was settled by Europeans and urbanized, the landscape of many diverse ecosystems — shrubby, grassy, shore, etc — allowed native coastal Californians to thrive. They lived here without developing any farming methods that we associate with traditional agriculture; instead they carefully tended and collected useful plants, foraged shellfish, and created conditions favorable for hunting….

Fungi in your soil: a reason to celebrate

By Lauren Lewis The weeks following our late winter rains, when the soil is as soaked as it’s ever going to be in SF, is when we’re most likely to find mushrooms in our gardens. If you do, it’s a reason to rejoice, because a mushroom is the above-ground evidence of fungi in the soil, and it’s hard to overstate just how important fungi…

Small but meaningful action through wildlife corridors

By Lauren Lewis As the title of this blog implies, our primary focus is: how does an individual garden in the city fit into the bigger picture? And the answer is: there are so many different ways that it’s exhilarating to think about (if you’re nerdy like us!). Arguably the most approachable example of how a garden connects to the world around it is…

Using weedy plants to fight weeds

By Lauren Lewis A weed is a weed almost always because it grows fast. It sprouts quickly and grows quickly, and can therefore take up more water, sunlight, and nutrients than its neighbor plants. At Small Spot Gardens, our primary strategy for weed control is finding ways to help our desired plants outcompete the weeds that are always trying to get a foothold. In…

Seed Power

By Lauren Lewis One of the defining characteristics of plants is unfortunately a limitation: their inability to move around. They have to reach out from where they are to find water and mates, or let those resources come to them, and they’re certainly disadvantaged when it comes to escaping danger (although many have evolved ingenious compensating strategies). Because of this limitation, the seed, the…

Gardens for the protection of the SF Bay

By Lauren Lewis The winter rainy season is a happy time for our gardens, and a less happy time for the San Francisco Bay. That’s because heavy rains, which typically happen a handful of times each winter, bring more water than Bay Area cities’ sewer systems can handle, and the result is more minimally-treated wastewater making its way into the Bay. Most of San…

Planting for soil health

By Lauren Lewis With the arrival of the (hopefully) rainy season, our thoughts go directly to what the rain can do for our gardens. Besides the obvious benefit of free, un-transported, apolitical water to nourish the plants, the rain also benefits the soil, by catalyzing the decomposition of dead plant material that’s lying around. So much of the soil in a city is compacted…

In our Mediterranean climate, the seasons reverse

By Lauren Lewis The tree losing its leaves is arguably the most recognizable image of autumn. In temperate areas of the world, like North America, the most common reason that trees lose their leaves, a process called abscission, is to protect themselves from cold damage. The plant senses a decrease in daylight hours, and responds by withdrawing nutrients from leaves for storage (the withdrawal…

The garden smells we love are plant protectors

By Lauren Lewis If you visit the San Francisco Botanical Garden on a hot day like we’ve been having recently, your nose may well have a more interesting experience than it would on a normal foggy day. That’s because most plants are constantly sending out odiferous volatile compounds (essentially chemicals), and warm air allows those volatiles to move around more and intensify. Some are…