These unique trees can be found in various locations across Northern and Central Vietnam, including Yen Bai, Lang Son, Lao Cai, Ha Tinh, Quang Binh, and Quang Tri provinces.
In Quang Ninh province, they are predominantly found in the districts of Binh Lieu, Dam Ha, Van Don, and Tien Yen, often growing on low hills, grasslands, or bushes.

The Thanh Mai tree is a small, woody tree that typically grows to a height of 8-10 meters with a wide canopy. Its fruits grow in clusters on the branches. Photo: Tung Dao
The fruits of the Thanh Mai tree are edible and highly sought after due to their unique sweet and sour taste and distinctive aroma, despite their small size, roughly equivalent to one or two finger widths.
In recent years, this fruit has gained popularity and is now considered a specialty, attracting visitors from near and far.
When unripe, the fruits have a light yellow or orange hue, but as they mature, they transform into a vibrant red or deep purple color.
According to Ms. Nguyen Loan from Van Don district in Quang Ninh province, apart from natural growth, locals in some areas have successfully cultivated Thanh Mai trees. During the harvest season, they are busy picking the ripe fruits.
“The Thanh Mai fruit season usually starts around April and lasts for about 2-3 months. Depending on the weather and soil conditions, the harvest time may vary slightly,” she added.
Ms. Loan explained that due to their juicy nature, the fruits must be handled gently to avoid bruising. Locals typically harvest them on sunny days to prevent water absorption during rain, which could diminish their sweetness.
A refreshing summer drink made from Thanh Mai syrup, showcasing its appealing color and flavor. Photo: Nguyen Thi Hao
“In addition to being consumed fresh like other familiar fruits, Thanh Mai can be transformed into jams, syrups, dried sour fruits, and beverages due to its delightful sweetness, reminiscent of strawberries, with a subtle hint of sourness and a refreshing taste,” Ms. Loan further explained.
Depending on the location, timing, and fruit size, Thanh Mai fruits are sold at prices ranging from 60,000 to 100,000 VND per kilogram.
The Mystical Second-Day-of-Tet Market in Hai Duong: A Unique Tradition Where Haggling is Forbidden.
The annual Dinh Ca Market, held on the second day of Lunar New Year in Hai Duong, is a unique trading and spiritual event. Unlike typical markets, there is no haggling or bargaining here; instead, it is a place of goodwill and auspicious wishes for the coming year. The market holds a special significance for both sellers and buyers, who come together to seek blessings and fortune for a prosperous new year ahead.
The Midnight Harvest: A Delicate Delicacy Illuminated.
After the sun sets, the locals in the western provinces of Vietnam embark on a unique nocturnal endeavor. They gather in groups and venture out into the night to forage for a delicacy known as “mushroom termite.” These prized fungi, sprouting from termite mounds, are sought-after ingredients for upscale restaurants and gourmet chefs. The locals’ nocturnal expeditions are not merely recreational; they are a means to earn a substantial income by supplying this exotic ingredient to discerning chefs and gourmet enthusiasts.
The Breathtaking Natural Rock Park in Ninh Thuan: A Majestic Wonder Crafted by Mother Nature Herself
The Ninh Thuan National Park has been recognized by UNESCO as a World Biosphere Reserve. This diverse landscape, boasting forests, seas, mountains, and a semi-desert, attracts tourists from far and wide. The majestic mountains, in particular, captivate visitors with their Mediterranean-esque vistas.