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A manager of plant records tracks every single plant in a 2,422 acre public garden; a newspaper columnist and author of the "100 Best Plants" book series, travels to gardens around the world in his retirement.

The collaborative series finale has a cast of thought-leaders featured throughout this series, who weigh in on healing the earth and the environment through plant conservation.

Host Reshmi Chetram combines her love of Bollywood and fitness.

An investigation into a dead women's past uncovers odd family values.

Louisa invites Martin to the Portwenn Players Dance; Martin makes a house call to a park ranger who claims to have a six-foot red squirrel as a friend.

Nick asks Jo Weston for a date; Norman returns with a new business partner; Lord Ashfordly doubles the rent at the pub.

Hyacinth is determined to star in an amateur musical production.

Paula and Gino met on a dating site; while their romance didn't spark, they clicked over a shared Italian heritage and a passion for good food; the twosome comes together to create the layers of a Tiramisu.

Louisa invites Martin to the Portwenn Players Dance; Martin makes a house call to a park ranger who claims to have a six-foot red squirrel as a friend.

Hyacinth is determined to star in an amateur musical production.

Cindy Murphy's philosophy about aging and pets fuels her desire to help fellow cat lovers; she is pairing up with 83-year-old Joan Mara to bring cat therapy to Joan's assisted living community.

An investigation into a dead women's past uncovers odd family values.

Presentations, keynotes and debates with some of the smartest people with big ideas.

A medical herbalist specializes in connecting people to healing plants; an exotic plant collector and daylily hybridizer inspires a new generation of gardeners to breed their own colorful flowers.

Nick asks Jo Weston for a date; Norman returns with a new business partner; Lord Ashfordly doubles the rent at the pub.