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| Every May to June, Mau Son mountain Lang Son province) is decorated with hydrangea flowers. Hydrangeas are mostly grown on resorts located at an altitude of more than 1,000 m. (Photo: VN Express) |
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| Hydrangeas were first grown in Mau Son around the beginning of the 20th century when the French came here to build resorts. Since 2011, the locality has made this tree a highlight for the area’s tourism. (Photo: VN Express) |
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| Mau Son hydrangea has a purple-blue color. Hydrangeas can change their color during the blooming season, depending on the alkalinity of the soil. (Photo: VN Express) |
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| Blue, purple, white, and pink outfits best match hydrangea gardens here. (Photo: VN Express) |
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| The hydrangea trees here are about one meter tall, planted in the sloping terrain of the mountainside. Visitors can between the flower beds, but they need to be gentle to avoid damaging the gardens. (Photo: VN Express) |
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| Some hotels welcome guests to take photos in the gardens. Ticket costs VND 10,000. (Photo: VN Express) |
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| Mau Son’s tourist area covers nearly 15,000 hectares. Most of the hotels and restaurants today are built on the foundation of old French villas. (Photo: VN Express) |
