Is It Invasive?

Plant lovers are often asked to name their favorite plant.  A common response is, “The next one I discover!”  While new discoveries keep life exciting, the unknown can also bring threats of danger.  A large number of invasive plant species are the result of horticultural introductions.  These include bush honeysuckle (Lonicera maackii and L. tatarica); Callery pears (Pyrus calleryana); autumn olive (Elaeagnus umbellata); Japanese knotweed (Fallopia japonica) and numerous others.  Their commonality is that with the best of intentions they were all intentionally introduced as ornamentals.  The challenge of green industry professionals is to recognize common traits that increase the potential to be invasive and apply these to the selection process. Continue reading