Celestial Seasons by C. E. Kilgore

Stranded on Earth after a hyperdrive malfunction, the five surviving members of the Zau’gaut’s crew learn to blend in and survive on a backwater world. Opening a seasonal decorating company, their captain hopes it will help them blend in while learning about Earther culture. Despite Earth’s primitive state, they find themselves growing attached to the planet and its people. When one crew member takes a chance and finds himself growing attached to a certain human woman, the crew begins to wonder if being stranded on Earth means they must also give up their chances at finding love.
Our heart has its own compass. It knows where we should be heading, even if the rest of us doesn’t. Through loss and love, our heart’s compass guides us through life, often to somewhere completely unexpected. When the world ends, the heart’s compass of several people has them headed in directions they may have never traveled otherwise.
Each book in the series is a stand-alone story, but is written within the same fictional setting in which the Earth has just been struck with several massive solar flares. All modern technology has been rendered inoperable. Cars, computers, city infrastructure, phones – all gone in an instant and without warning. In the days directly following the end of the modern world, people must learn to depend on each other, and on their heart’s compass, if they hope to survive.