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The FDA is instead encouraging the use of so-called natural food dyes such as gardenia blue and calcium phosphate.

Busy gardeners should look for low-maintenance plants like ZZ plants, Chinese evergreens, pothos and philodendrons, while others may choose ferns, peace lilies, baby tears and gardenias that require a bit more attention and care.

And a genipin-derived blue from gardenia fruits that has long been used in parts of Asia could soon enter the U.S. and international markets, too.

Coca-Cola is a perfect fertilizer for gardenias, azaleas and grass.

My parents smell like a mixture of gardenias and embalming fluid, even in the evenings after their showers.