Kazanlak is a city famous for greatest amount of oil-bearing roses. The rose valley holds rose Festival in the first week of June every year.

卡赞·勒克市是保加利亚种植产油玫瑰花最多的一个地区，玫瑰谷玫瑰节会在这里每年六月的第一个周举办。

youdao

Paul thought the violets,roses, and lilies of the valley looked even more lovely because they were blooming in the middle of winter.

VOA: special.2009.04.11

Continuing north across the Valley of Roses leads to the base of the Stara Planina (Balkan) Mountain, which cuts Bulgaria into its northern and southern halves.

BBC: Bulgarian road trip: Sofia to the City of the Tsars