CNN is reporting that Saudi Arabia is instructing its florists to remove all red items for Valentine’s Day.

Saudi Arabia has asked florists and gift shops to remove all red items until after Valentine’s Day, calling the celebration of such a holiday a sin, local media reported Monday.

“As Muslims we shouldn’t celebrate a non-Muslim celebration, especially this one that encourages immoral relations between unmarried men and women, ” Sheikh Khaled Al-Dossari, a scholar in Islamic studies, told the Saudi Gazette, an English-language newspaper.

Every year, officials with the conservative Muslim kingdom’s Commission for the Promotion of Virtue and Prevention of Vice clamp down on shops a few days before February 14, instructing them to remove red roses, red wrapping paper, gift boxes and teddy bears. On the eve of the holiday, they raid stores and seize symbols of love.

The crackdown on Valentine’s Day products has lead to the creation of a black market in red roses.

Because of the ban on red roses, a black market has flowered ahead of Valentine’s Day. Roses that normally go for five Saudi riyal ($1.30) fetch up to 30 riyal ($8) on February 14, the Saudi Gazette said.

“Sometimes we deliver the bouquets in the middle of the night or early morning, to avoid suspicion,” one florist told the paper.

The black market in Saudi Arabia is listed at $320 million.