Plant Doctor Tom MacCubbin shares advice on growing nasturtiums from seeds dropped from previous plants and how to grow holiday poinsettias for another year.

Florist hydrangea. The potted hydrangea, with its big mophead flowers, ... It is bred for its large, long-lasting flowers, which may be lavender, peach, pink, red or white. Some are bicolor.

Bigleaf hydrangeas are one of my favorite ornamentals. When I was a child, my great-aunt had many in her yard. My name for them back then was “blue ball bushes,” because almost all of her ...