botany

Kitchen Alchemy

Ramps, a Wild Harvest

The lifecycle of a seasonal delicacy

One of the ways that we know for sure that spring has sprung is the appearances of ramps on the trails and at the markets. Ramps, Allium tricoccum, are also known as wild leeks, ramson, and ail de bois. They appear in the springtime in deciduous forest areas from South Carolina to Canada and as far west as Missouri and Minnesota. West Virginia in particular is known for its celebration of this seasonal delicacy. Ramps grow in patches in cool shady areas with moist soil rich in organic materials. They begin to appear in late March and can be found through the end of May.

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Build It

DIY Grow Lights

Create a light system to keep houseplants thriving during the short days of winter

As you huddle inside your home this winter cursing the gloomy darkness, remember that you’re not alone: The season has an even worse effect on your plants. Many common houseplants need far more hours of light than they get naturally in the middle of February, especially if they don’t have direct exposure to a sunlit window. Although the incandescent and fluorescent bulbs most people have in their homes will keep plants alive, they don’t emit light that’s within the temperature range necessary for optimal, or even adequate, foliage growth in light-hungry plants.

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Saudi Arabia's Jurassic Park

Beneath Saudi Arabia’s blazing sun, the largest greenhouse ever planned is taking shape. It will take visitors on a walk through Earth’s history—and into its future

A Stroll through Botanic History: The crescent-shaped greenhouse at King Abdullah International Botanical Gardens, rendered here, will be the size of 15 football fields, making it four times as big as the world’s current largest greenhouse.
It’s hard to imagine it raining in Riyadh. Less than five inches of water fall from the clouds above Saudi Arabia’s capital city each year. When the thermostat rises above 110°F, it’s not a heat wave—it’s midday. But it wasn’t always like this. A little over three million years ago, before climate-change cycles turned the area into a desert, the Arabian Peninsula’s empty riverbeds were overflowing valleys, and its dry expanses of shrubland were lush grasslands.

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December 2009: Best of What's New

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