Friday, November 7, 2025

Polaris of Enlightenment

Spring greens from the Nordic pantry

Published May 18, 2025 – By Editorial staff
Wood sorrel takes many Swedes back to childhood.

Many people remember the sour taste of wood sorrel, or how dewdrops filled the grass on the lawn in the morning, but over the years they have forgotten that these plants are actually edible. In the forest, on the lawn, and even in the city, there are lots of herbs and other plants that can be eaten during the green season in spring.

However, it is important to remember that Nordic plants can often be poisonous, so you should never eat anything you are unsure about.

The darkness is receding and light is returning to the Swedish landscape. With light, sun, and more warmth, the earth is slowly thawing and the leaves are spreading their buds. The green leaves are not only a delight that brings spring feelings, but also contain a lot of edible plants. In Sweden, there is plenty to eat in nature besides the well-known lingonberries and the wide variety of mushrooms that attract people to the forest. There are also weeds, trees, bushes, and flowers. In this article, we take a look at some of the edible herbs and leaves of spring.

In Sweden, the forest is there for everyone through the right of public access, but you should always respect both the landowner and nature. For some things, such as trees, you need the landowner's permission to pick, and you should not pick more than you will use. It is also important to think carefully when you are in the forest, as it is easy to get lost.

Many edible plants are found not only in forests but also in cities, but you should always avoid picking them along roads due to exhaust fumes. If necessary, you can use Stans Flora to learn how to recognize different plants. It is important to remember never to eat anything you are not sure about, as there are many poisonous plants in Sweden that can have disastrous consequences if ingested. Read up, look carefully, and never guess.

Blueberry leaves (Vaccinium myrtillus)

Harvest: May to June

Most people know that blueberries are edible, but not everyone knows that the leaves are edible too. Blueberries themselves are very healthy, but the leaves also have many beneficial qualities. Among other things, they contain flavonoids, which act as effective antioxidants, as well as neomyrtelin, which is said to be good for type 2 diabetes, according to Läkeörter.se. The leaves contain vitamin C and chromium.

The best way to use blueberry leaves is to make a decoction, i.e., tea. Fresh leaves are perfectly fine to use, but you can also dry them and use them during the winter. Blueberry leaf tea is said to counteract diarrhea and stomach problems, as well as have blood sugar-lowering properties and be good for urinary tract problems.

Pick the leaves before the berries appear. Photo: Ann-Sophie Qvarnström/Public Domain

Shepherd's purse (Capsella bursa-pastoris)

Harvested: April to November

The plant has a slender stem with white flowers and grows in meadows. Along the stalk there are fruit pods that are slightly heart-shaped. It is one of the most common weeds and is found throughout Sweden, except in the mountains.

You can eat the whole plant, except the root. It is said that the shepherd's purse was already used as food in the Stone Age.

The fruit pods in particular have a taste reminiscent of ginger and mustard. The young leaves can be used in salads, or they can be dried and used later in cooking. One tip is to make spiced butter from the unripe fruit pods.

The shepherd's purse is said to have a hemostatic, bactericidal, anti-inflammatory and vasoconstrictive effect, making it effective in wound care. It can be dried and powdered, for example, and then used and sprinkled directly on wounds to stop bleeding.

It is also high in iron, calcium, vitamin K and vitamin C. It can be confused with the field pennycress, but it is also edible. It is also said to have been used against chills in the past.

Avoid eating it during pregnancy and if you have problems with kidney stones or kidney disease.

Shepherd's purse. Photo: Andreas Rockstein/CC BY-SA 2.0

Wood sorrel (Oxalis acetosella)

Harvested: April to October

This classic herb likes to grow in wetter woods and has three heart-shaped leaves that resemble clover. Both flowers and leaves can be eaten. Its flowers, however, are similar to those of wood anemone, which is poisonous to eat, but the difference is that wood anemone flowers have white seed stalks and pink veins. Both also flower around the same time in May. So look carefully to make sure it's not an accidentally picked-up wood anemone, especially if children are around.

The wood sorrel is often called the barometer of the forest because it sheds its leaves when it rains.

The herb has a sour taste, which comes from the poison oxalic acid. However, eating foods with oxalic acid is not toxic, but you should not eat large amounts (which is difficult to do with resin acid). If you suffer from kidney stones, you should not eat anything with oxalic acid in it. The acidic taste is suitable as a flavor enhancer in sauces or salads, for example. It is also good in desserts or mixed in water for a mealtime drink. Or why not go for a snack on your walk?

It grows throughout Sweden, except in northernmost Norrland.

Wood sorrel. Photo: Tero Karppinen/CC BY 2.0

Lady's mantle (Alchemilla vulgaris)

Harvested: May to July

Perhaps as a child you used to pick lady's mantle from the lawn and drink the morning dew that collected, if nothing else, the common plant is probably recognized by most people. It is found throughout Sweden and is common, in addition to lawns, also in meadows. It can also be found in the forest.

The leaves are bowl-shaped and it has small yellow-green flowers.

The name Alchemilla comes from the belief that the water droplet formed in the plant's bowl was an important ingredient for alchemists.

Traditionally, the plant has been used as a medicinal herb and is said to be good to drink during pregnancy. It is also said to have been used after childbirth as the tannins in the plant can help tighten the skin, so it has also been used as a compress for wound healing. For this reason, it is also said to be beneficial to drink lady's mantle decoction during heavy menstruation.

It has also been called "a woman's best friend" as it is said to be good for facilitating regular menstruation and also relieving menopausal symptoms.

It also contains essential oils and saponins, which together with the tannins can prevent chapped skin.

Both leaves and flowers can be eaten. Cut off the leaves at the base and the plant will continue to grow. Dry and use as a tea, or as a salad topper. Make a decoction and then use as an astringent toner.

Lady's mantle. Photo: Alexandre Dulaunoy/CC BY-SA 2.0

Birch leaves (Betula spp.)

Harvested: May to June

The white-black tree is easy to recognize. In spring, the leaves start to bud on the tree and this is when they are best to pick. Birch leaves are useful both internally and externally.

Birch leaves have long been used to give the body an extra boost after winter. The leaves can be used as a tea and provide a range of benefits to the body. Among other things, they are said to be high in vitamin C, but also to help support the kidneys and clear waste products from the body. The leaves are also said to be anti-viral and anti-inflammatory, and good for rheumatism.

Furthermore, you can also make an infusion of the leaves and use it as a toner, which is supposed to help clearer skin. It is also said to be good for eczema. Why not take a bath with birch leaves to benefit the whole body?

If you want to try a natural shampoo or household cleanser, mix a liter of water with a deciliter of fresh leaves. Leave for 24 hours, stirring occasionally. After that, you can strain the leaves and it should have created a form of soap. You can use this for your hair or to scrub with.

Photo: Bengt Littorin/ CC BY 2.0

Stinging nettle (Urtica dioica) and whitetop (Lamium album)

Harvested: March to August

Stinging nettle is found throughout Sweden, grows a little everywhere and should be picked with gloves because it burns. It can be picked as a shoot but also as a fully grown plant.

The plant is very rich in vitamin C and is relatively rich in protein. It also contains iron, calcium, phosphorus, silicon, manganese and sulphur.

However, do not pick stinging nettles on nitrogen-fertilized soil or near manure gardens. Nettles have the ability to store nitrates which can be harmful to eat in large quantities.

It can be used as spinach in hot dishes and can also be dried and used as tea. The seed pods can also be picked and dried, which can be added to muesli for extra energy. Nettle soup is also a popular dish.

The white dead-nettle is very similar to the stinging nettle, except that it has white or red flowers (red thistle). However, it has no stinging hairs. It's also a very common plant and you can eat both its leaves and flowers. Making tea from the flowers is said to be particularly good and tastes sweet and toffee-like. It is common for children to suck nectar from the flowers.

Stinging nettle and white dead-nettle. Photo: Andreas Rockstein/CC BY-SA 2.0

Water avens (Geum rivale)

Harvested: April to October

The herb is said to have gotten its Swedish name humleblomster (bumblebee flower) because the flower mimics the hindquarters of a bumblebee. The flower grows throughout the country and is part of the Dianthus genus, which means it can be confused with carnation, which is not poisonous. Carnation, on the other hand, has yellow flowers, while hop flowers are more purple-brown in color. It usually grows in wetter areas. The root, which is best picked in spring, has a sweetish flavor and can be used to make a chocolatey drink by peeling the root and placing it in a saucepan filled with water. Bring to the boil, then remove from the pan and leave to stand for 20 to 30 minutes, then strain out the roots and add sugar and hot milk. The shoots can be eaten fresh and the flowers are great for decorating salads, for example. The leaves can be added to a soup or used in stews.

Traditionally, a decoction of the root has been used internally for chills, fever, diarrhea, and intestinal and stomach issues. Externally, it has been used to treat various skin conditions such as blotchy skin, acne, and freckles. In folk medicine, the root has also been used for its anti-inflammatory, antiseptic, and astringent properties.

Water avens. Photo:Thibault Lefort/Public Domain

TNT is truly independent!

We don’t have a billionaire owner, and our unique reader-funded model keeps us free from political or corporate influence. This means we can fearlessly report the facts and shine a light on the misdeeds of those in power.

Consider a donation to keep our independent journalism running…

China’s emissions may have peaked – massive investment in renewables

The modern China

Published yesterday 11:05 am – By Editorial staff
Aerial view of a solar power park installed by the state-owned Chinese energy company China Huadian Corporation (CHD) in the Gurbantunggut Desert, Xinjiang region in northwestern China.

China accounts for over 30 percent of the world's greenhouse gas emissions, but is simultaneously investing more than any other country in renewable energy and electric vehicles. New figures suggest that Chinese emissions may have peaked earlier than expected.

China emits an estimated 15.6 gigatons of carbon dioxide equivalents (carbon dioxide and other greenhouse gases) annually, making the country the world's single largest emitter. But behind the figures, a comprehensive transformation is underway, reports AFP.

Chinese electricity production is still dominated by coal, which accounts for nearly 60 percent of generated power. But massive installations of renewable energy are rapidly changing the picture. China now has 1,482 gigawatts of installed solar and wind power capacity and aims to increase its capacity sixfold from 2020 levels to 3,600 gigawatts by 2035.

According to analysts' assessments, the goal is realistic – in fact, so realistic that the country may reach it earlier than planned. During 2024, China added significantly more than the 200 gigawatts per year that would be required to meet the target.

Electric vehicles taking over the market

In the automotive market, the transition has been even faster. Nearly half of all new cars sold in China during 2024 were either electric or plug-in hybrids. The country accounts for over 70 percent of global electric vehicle production and has, according to the International Energy Agency (IEA), become the world leader in the field.

President Xi Jinping has stated that vehicles with "new energy" should become mainstream in the Chinese market – a goal that has essentially already been achieved.

Electric cars dominate new car sales in China, with prices that can be around €20,000 lower than European equivalents. Photo: The Nordic Times

Emissions may have peaked

In September, China presented concrete numerical targets for emission reductions for the first time: a reduction of 7–10 percent by 2035.

Some observers believe that Chinese emissions have already reached their highest level, or are close to doing so, thanks to the rapid expansion of renewable energy and nuclear power. Beijing has previously committed to reaching peak emissions by 2030 at the latest and to being "carbon neutral" by 2060.

In China, debate about the downsides of wind power is not common, and large amounts of wind power have been installed in desert areas and offshore in recent years.

Income level found to influence garden biodiversity

Biodiversity

Published October 27, 2025 – By Editorial staff
Researchers see gardens as a potential tool for preserving biodiversity as global diversity declines.

Households with lower incomes tend to have more biodiversity in their gardens, according to a study from North Carolina State University in the United States. People with higher incomes prefer neatly mowed lawns instead.

In the study, published in HortScience, researchers examined attitudes toward biodiversity in the United States. They surveyed over 2,000 people and looked at whether they had any innate appreciation for biodiversity, something called biophilia.

The results showed that far from all people had an innate appreciation for biodiversity, and it varied greatly between individuals. However, it was not uncommon for it to develop early in life.

Biodiversity is declining globally and climate goals are often not met. Therefore, researchers have begun to see gardens as a tool for preserving plant and animal life. But to succeed, they must first understand who is willing to let their gardens grow wilder.

While a single person’s garden isn’t going to do much individually, as a collective they could be a big part of conserving biodiversity. The question then becomes; how do you get those people to change their gardens in that way? says Vanessa Woods, doctoral student at NC University, in a press release. To do that, you must first identify the people who are receptive to these more natural gardens with greater biodiversity.

Income plays a role

The most important factor for biophilia was income level, the researchers conclude. The higher the income, the less inclined people were to have more biodiversity in their garden, preferring neatly mowed lawns.

The lower the income level, the more positively disposed people were to a more wild-grown garden. Households with an income below $25,000 per year showed the greatest interest in biodiversity. Additionally, people who lived more environmentally friendly lifestyles were also more open to a garden that promotes biodiversity.

Melinda Knuth, lead researcher and associate professor at North Carolina State University, believes it is important to identify those who are attracted to biodiversity in order to bridge the gap between intention and conservation actions.

To do that, you first need to identify the people who will be receptive to those messier, more biodiverse types of gardens, she says.

Leopard seals sing lullabies

Published October 24, 2025 – By Editorial staff
Male leopard seals sing up to 13 hours per day during mating season to attract females

The mating calls, or songs, of leopard seals resemble human nursery rhymes and lullabies, new analyses show. Among other things, the song is reminiscent of "Baa, Baa, Black Sheep".

Leopard seals live in Antarctica where they mostly spend their time hunting penguins or relaxing on the floating sea ice. They can grow nearly four meters long and weigh between 300 and 500 kilograms. Males also have another repetitive occupation – and that is to find a female to mate with. To do this, the males "sing" when they are underwater. They do this every day from late October to early January.

Males can sing for up to 13 hours per day. Females also sing, but only for a few days a year when they are in heat.

It’s big business for them. They’re like the songbirds of the Southern Ocean. During the breeding season, if you drop a hydrophone into the water anywhere in the region, you’ll hear them singing, says Professor Tracey Rogers, from the University of New South Wales (UNSW), in a press release.

Now researchers have analyzed recordings of the male seals' songs to better understand their structure and patterns. There they discovered that the structure of leopard seal songs resembles nursery rhymes or lullabies.

"Baa, baa, black sheep"

In total, songs from 26 different males were studied and it was found that the sounds were very similar in pitch and length, but that the order and pattern in which the sounds were emitted varied considerably between individuals.

"We think this is a deliberate strategy. While leopard seals are solitary animals, the males need their call to carry clearly across vast stretches of icy ocean, to woo a mate", the researchers write in Science Direct.

The researchers compared the song with several different styles of human music and discovered that it consisted of five key notes. What also stood out were the similarities between the predictability of nursery rhymes and leopard seal calls. Nursery rhymes are characterized by being simple, repetitive and easy to remember, something that the seals' songs also were.

Among other things, they found similarities with the well-known rhymes "Twinkle, Twinkle, Little Star", "Baa, Baa, Black Sheep" and the classic "Rock-a-bye Baby". The simple melodies likely make it possible for the male leopard seal to continue singing his unique mating call for several days, which is important to avoid changes in pitch or frequency as this could create misunderstandings among other leopard seals.

It’s the order and pattern that matters. They’ve stylised it to an almost boring degree, which we think is a deliberate strategy, so their call carries a long distance across the ice, says Professor Tracey Rogers.

Finnish city tests forest microbes in playgrounds to boost children’s health

Biodiversity

Published October 17, 2025 – By Editorial staff
The sandbox consists of fallen trees filled with sand and humus. If the test succeeds, the concept could be expanded to more playgrounds.

A new type of sandbox has been installed in Kupittaa Park in Turku, Finland. Instead of regular sand, it contains soil from the forest floor filled with microorganisms that, according to research, strengthen children's immune systems.

The city of Turku is now taking a unique step to counteract health problems in children growing up in urban environments. In Kupittaa Park, the country's first sandbox has been built that mixes traditional play sand with humus and microbes from the forest.

The initiative is based on research from the Natural Resources Institute Finland, the University of Helsinki, and Tampere University, which shows that exposure to forest microbes improves the regulation of children's immune systems.

The study showed that children who played in sand enriched with forest soil exhibited improved immune regulation. The discovery is particularly important because urban children are increasingly affected by immune-related diseases such as allergies, asthma, atopy, and type 1 diabetes.

The cause is linked to the fact that city children have limited contact with the diversity of microorganisms found in nature.

Follow-up will determine the future

The new play box is constructed from logs – naturally fallen trees – and filled with a mixture of sand and humus from the forest floor. The design is deliberately simple so it can be replicated if the concept proves successful.

— I became enthusiastic about the Natural Resources Institute's research showing that sand mixed with soil containing microbes from the forest improved children's resistance. I thought the box would be easy to test at a playground in the city. Based on user experiences, we will assess whether such a play box could be implemented on a larger scale, says Anna-Kaisa Hatakka, responsible project manager at the City of Turku, in a press release.

The city will now monitor how popular the new play box becomes among children and parents. If the project succeeds, it could mean a new direction for Turku's playgrounds, where in recent years rubber mats have increasingly been chosen over natural surfaces such as grass and gravel.

Our independent journalism needs your support!
We appreciate all of your donations to keep us alive and running.

Our independent journalism needs your support!
Consider a donation.

You can donate any amount of your choosing, one-time payment or even monthly.
We appreciate all of your donations to keep us alive and running.

Dont miss another article!

Sign up for our newsletter today!

Take part of uncensored news – free from industry interests and political correctness from the Polaris of Enlightenment – every week.