Self-Irrigating Desert Plant Discovered

A desert plant has apparently figured out how to water itself.

Ecologists had been puzzling over the desert rhubarb for years: Instead of the tiny, spiky leaves found on most desert plants, this rare rhubarb boasts lush green leaves up to a meter wide.

Now scientists from the University of Haifa-Oranim in Israel have discovered that ridges in the plant’s giant leaves actually collect water and channel it down to the plant’s root system, harvesting up to 16 times more water than any other plant in the region.

“It is the first example of a self-irrigating plant,” said plant biologist Gidi Ne’eman, a co-author on the paper published in March in Naturwissenschaften, a German journal of ecology. “This is the only case we know, but in other places in the world there might be additional plants that use the same adaptions.”

The desert rhubarb grows in the mountainous deserts of Israel and Jordan, where there’s only about 75mm of rainfall each year. Even during the rainy season, the region’s light rainfalls often don’t penetrate the rocky soil of the desert. Plants with large leaves and a deep root system, like the desert rhubarb, typically can’t survive in such an arid climate.

But when the researchers measured the plant’s water absorption during a light rain, they discovered that water infiltrated the soil 10 times deeper around the desert rhubarb than in surrounding areas. Upon closer examination, scientists discovered deep grooves around the plant’s veins, which are coated in a waxy cuticle that helps channel water down to the root.

“Even in the slightest rains,” the researchers wrote, “the typical plant harvests more than 4,300 cubic centimeters of water per year and enjoys a water regime of about 427 millimeters per year, equivalent to the water supply in a Mediterranean climate.”

Some scientists say the desert rhubarb isn’t all that, however. “Many plants channel water to their base to be absorbed by the root,” Lindy Brigham, a plant ecologist from the University of Arizona, wrote in an email. “Just look at the way plant leaves are shaped and how they branch from the base in many cases.” The architecture of the desert rhubarb’s leaves is unusual, she said, but not necessarily the only example of this adaptation.

Square Watermelons! It's true.

It's not a fad. The technique actually has practical applications. "The reason they're doing this in Japan is because of lack of space," said Samantha Winters of the National Watermelon Promotion Board in Orlando, Florida.

A fat, round watermelon can take up a lot of room in a refrigerator, and the usually round fruit often sits awkwardly on refrigerator shelves. But clever Japanese farmers have solved this dilemma by forcing their watermelons to grow into a square shape.

Farmers insert the melons into square, tempered glass cases while the fruit is still growing on the vine.

The square boxes are the exact dimensions of Japanese refrigerators, allowing full-grown watermelons to fit conveniently and precisely onto refrigerator shelves.

But cubic fruit comes with a price: Each square watermelon costs 10,000 yen, the equivalent of about $82. Regular watermelons in Japan cost from $15 to $25 each.

Japanese farmers have perfected the art of growing square watermelons, but they aren’t about to reveal their secret process. When a square watermelon sells for $82 who can blame them.

Buddha shaped Pears

Gao Xianzhang has managed to create what some would call the holiest fruits ever, pears shaped like


Gao has been working on his pear-growing technique for six years and this season he managed to grow 10,000 Buddha-shaped baby pears. Each fruit is grown in an intricate Buddha mould and ends up looking like a juicy figurine. The ingenious farmer says the locals in his home village of Hexia, norther China, have been buying his Buddha pears as soon as he picks them from the trees. Most of them think they are cute and that they bring good luck.

Gao Xianzhang pears aren’t cheap, roughly $1.8 each, but their success in China convinced him to start exporting them into Europe.