Would That It Were That Simple

The USDA Plant Hardiness Zone Map was originally compiled at the Arnold Arboretum, first published in 1938 and most recently updated (for only the second time) in 2012. * The previous update was in 1990. The map can be useful in helping to decide whether or not to place a particular species in the landscape as a potential perennial, but temperature is just one limiting factor. Moreover, the temperatures used in creating the zone boundaries (the thermoclines) of the USDA map are merely the range averages for the winter low. The average DOES NOT determine hardiness. Extremes are what damage or kill specimens. For most plants, especially those with living tissue above ground overwinter, it

Rant of the Month

Unfortunately, most people know little about gardening and environmental issues including many "professionals" employed to choose, install and maintain plants and design landscapes. This page highlights specific issues with commentary on remedy or recommendation for course of action. Examples are numerous and easy to find -- rarely requiring me to travel far from home.  Hopefully, these postings will make the task of finding examples more difficult.  I will occasionally also post outstanding and approved examples in an effort to educate.