95% of monarchs use this Honeyvine as a host plant in Oklahoma and Texas in September/October. These are many of the Super Monarchs that winter at altitude in central Mexico.
Sadly, it is often confused with the bindweeds.
The milkvines have opposed leaves and the bindweeds had alternate leaves.
Is it only Sept/oct?
The plants use by monarchs spikes at that time due to the location of monarchs in their migration. Also the availability of other kinds of host plants has declined due to dormancy. Honeyvine can be a host plant anytime the leaves are green. Almost year round sans Jan-Feb. it just really shines relative to other milkweeds at this specific time of year.
I have both all over my yard. I don't pull either unless its choking out something important.
