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Glasswort, the Bright Red Plant Covering Lake Saroma in Hokkaido

This video, titled " JG 4K Hokkaido|Glasswort Around Lake Saroma|Hokkaido Sea Asparagus" (JG 4K 北海道 サロマ湖周辺のアッケシソウ(サンゴソウ) Hokkaido Sea Asparagus), was uploaded by " JAPAN GEOGRAPHIC."

Hokkaido is one of the most popular tourist destinations in Japan, attracting many foreign tourists every year thanks to its natural beauty.
"In this 4K video, you can see the rare carpet of sea asparagus at Lake Saroma in Hokkaido, which is known as "Japan's best red carpet."

Glasswort is a saltwater plant that grows in salt marshes that are subject to the ebb and flow of the tides.
It is a salt-tolerant, edible plant that grows into a cylindrical shape 10 to 35 cm tall.

As glasswort, an annual plant, grows, its flesh stores a large amount of salt, giving it a firm texture and salty taste.
The leaves and stems are edible, and it is called sea asparagus because of its resemblance to asparagus, and is used in cooking in parts of Europe.
Lake Saroma is the largest brackish lake in Japan and faces the sea, making it ideal the ideal environment for sea asparagus to grow.

The Sea Asparagus at Lake Saroma in Hokkaido

Image of sea asparagus
Photo:Sea asparagus

Salicornia Europaea, this variety of sea asparagus, has been registered as an endangered species.
Lake Noto in Abashiri, Hokkaido, is home to one of the largest colonies of sea asparagus in Japan, which is artificially cultivated with a tractor to suppress the growth of other halophytes (salt-tolerant plants).
Lake Saroma, shown in the video, is one of the few areas where sea asparagus is cultivated.

In Japanese the plant is often called "Sango-so" (サンゴ草: lit. "Coral grass") because its tips are red and resemble coral.
You can see a close-up shot of the coral-like glasswort at 3:13 in the video.

Tasting the Sea Asparagus Grown in Hokkaido's Lake Saroma

Image of sea asparagus
Photo:Sea asparagus

Sea asparagus is a plant that tastes salty when eaten raw, so it is commonly boiled and eaten as is.
It is also delicious when added to pasta, stews, and other boiled dishes.
In recent years, it has been distributed in supermarkets across Japan, so be sure to try it if you have the chance.

It is rich in minerals and amino acids such as magnesium, which Japanese people tend to deficient in, and the extract of sea asparagus is so nutritious that it is used as an ingredient in many supplements.

Summary of Sea Asparagus at Lake Saroma in Hokkaido

Lake Saroma in Hokkaido is part of the Abashiri Quasi-National Park, and is famous as an area that cranes fly over every year in early September when the autumn leaves begin to change color.
You can see one of these cranes at 3:17 in the video.
Sango-so Matsuri (能取湖さんご草祭り) a sea asparagus festival at Lake Saroma is held from early to mid-September, and a sightseeing bus called "Dollymint Okhotsk-go" (ドリーミントオホーツク号) operates there.

As it is not a place with convenient access, many tourists visit by rental car, so be sure to research details on parking and other events in the area.

【TripAdvisor】Lake Saroma

Written By
Last Updated : Oct. 8, 2022
児玉 勇(Yu Kodama)
A writer who loves Japan and yakitori
The Surface of Hokkaido's Lake Saroma Dyed a Beautiful Bright Red by Sea Asparagus. Discover the Natural Beauty of Hokkaido in This 4K Video!
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