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White Asparagus

By Rick Gush, Urban Farm contributor

Friday, April 27, 2012

white asparagus

Photo by Rick Gush

White asparagus is mostly grown in Germany, but I can find it here in Italy just fine.

One of the things I love about the Internet is that it is full of lies, but it is also a great place to do research. So good, that I’ve gotten rid of all the thousands of agriculture reference books that I had spent decades collecting. But the net has more copiers than original information sources, and a great deal of the information on there is sullied by this rampant practice.

Today’s case in point is the information about white asparagus. There are now thousands of Internet sources that claim things such as, “White asparagus is just green asparagus that has been covered with dirt to block the sunlight.” Sorry repeaters, but this just isn’t so. White asparagus is grown using special varieties that are different from those used to produce green asparagus. The whole process of growing white asparagus is far more labor-intensive; even the harvested asparagus is kept dark until it reaches the packing shed, and the final product is fairly different, since white asparagus must have the stems peeled before they can be eaten. Farmers can also sell white asparagus for about five times the price of green asparagus.

Because of the fact that the stems on white asparagus are very bitter, the stems must be peeled before consumption. And since the stems need to be peeled, the white asparagus varieties place a particular emphasis on extra-thick stalks. Most of the green varieties have considerably thinner stalks, and would be inappropriate peeling candidates.

Asparagus crops are somewhat like carrots in that they prefer very sandy soil because of the lower soil pressure (It can be pushed aside with less energy.) allows the developing asparagus stalks grow easier in diameter and height. Harvesting is also much easier in a sandy soil.

In Germany, which is probably the country where the most white asparagus is produced and consumed, the farmers often use a clever two-sided piece of plastic — one side black and one side white — to shade the heaped-up asparagus beds. When the weather is cool, the farmers turn the black side up because the black side will heat and transmit heat down to the developing asparagus shoots. When the weather is hot, the farmers turn the plastic over, so that the white side is up, which will reflect heat away from the soil and keep it cooler. Simple and clever, but labor-intensive, since turning all the plastic in a big field can take hours.

There are also some good things on the Internet. For example, here’s a link to a video showing a bit of spargel (white asparagus in Germany) harvesting and processing. http://www.youtube.com/watch?v=8FkL75vcJdo

One of the really amusing things about the net is that one can find him or herself scattered about here and there. While doing a bit of search engine browsing before writing this blog I stumbled across an old article I wrote for Hobby Farms magazine back in 2003 and completely forgot about. Luckily, I don’t sound like an idiot, and the article is actually a fairly good summary of asparagus cultivation. Check out the article here.

Read more of Rick's Favorite Crops »

Give us your opinion on White Asparagus.
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We are about to have a feastival in the near by town of Tracy, the feastival s all about ASPARAGUS, good stuff.
Carl, Livermore, CA
Posted: 4/27/2012 11:10:28 AM

About the Blogger

Rick Gush

Rick Gush
Rick Gush has long been a staunch organic gardener. While a student at the University of California at Davis he worked at local tomato and sugar beet farms and continued in the agricultural and horticultural industries for many years. A career move in the 1990s led him to design computer games, but no matter how much of a techie he’s become, gardening and farming remain his principal passions.

In 2000, Rick moved to Italy, where he writes to you about his cliff garden and other experiences in Italian urban agriculture.

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