Conventional wisdom has
it that honeybees are attracted to asters and goldenrod at this time of
year. The chilly, cloudy weather we've had lately hasn't been
conducive to much bee activity at all, but when the sun does tempt our
bees out, they go straight to the smartweed instead. Tiny, pink
smartweed flowers seem to be just my bees' speed, especially since the
"lawn" right outside their hive is chock full of it.
I have a difficult time identifying smartweeds. All of them
belong to the genus Polygonum,
half of them are invasive species, and most areas have about two dozen
look-alike species to choose from. My best guess is that my
smartweed is Oriental Lady's Thumb (Polygonum
caespitosum), a native of Asia that is common in damp areas.
Mark suggested collecting seeds of the smartweed and expanding its
territory since the flowers seem to be so popular with the bees.
I'm not comfortable encouraging invasive plants too much, but I think I
will make a habit of skipping the last grass mowing in the fall to give
our bees some late nectar right by the hive.