Birchwood Garden Club member Cheryl Haak, left, and club president Judy Boxx will mark the centennial of roses at Cornwall Rose Garden with the dedication of a new sundial at the garden at 1 p.m.

There’s a lot of focus these days on solar energy, on harnessing the light from our nearest star to fuel our daily activities. Plants, of course, have been doing just that for millions of years.

Sundials make wonderful garden accents. Timeless and beautiful, they often serve as a focal point. References to obelisks date to 3500 BC and shadow clocks to 1500 BC. A sundial is mentioned in the ...