The NWIPC has begun establishing Invasive Plant geocaches. What better way to learn about invasive plants then by getting outdoors and challenging yourself at the same time. If you're not sure what I"m talking about, watch the quick video below.
Three caches have been established to date, blueweed, hoary alyssum and mountain bluet. Look for more in the future. If your an invasive plant professional, note that these caches are not always directly within the IAPP site. As always, use caution around parking areas and road crossings. Good luck!