You dread unexpected knocks at your door. Who could it be? A Jehovah’s witness? A campaigner for the “bad” side? Your mother!?

Put some clothes on. It’s Flowers at Your Door, a flower delivery service out of Coral Gables.

Don’t expect passé arrangements of carnations and baby’s breath. Instead, the exotic blooms include hydrangeas, lilies, agapanthus, and snapdragons — all of which usually last a week longer than normal buds.

The trick: The flowers are overnighted from farms in Colombia and Ecuador and delivered the next day, cutting out the blossom-killing middleman. Plus, the farms are all Rainforest Alliance certified, meaning they preserve the environment and sustain jobs.

Skip the withering daises at Publix in favor of the new Flower Club: fresh blooms delivered every Thursday.

Opportunity knocks.

Available online at flowersatyourdoor.com.