Flowers like this one are produced on new vigorous growth on a Christmas cactus. Over time the growth becomes less vigorous and it is normal for the lower stems to become woody. (Courtesy of ...

As such, it is considered more of a flowering perennial than a woody shrub ... Many gardeners let the flowers go to seed, ...

With most trees and shrubs virtually naked this time of year, there can often be few observable signs of life among the ...