Yes some where out there and have ordered 100s of lbs for a rancher near Hico that I’ve landscaped many years for, of course everything is going to come up in fall and bloom in April-May for them and more for general butterflies . The last generation of monarchs that make it to Mexico from Texas a lot, under go a change in physiology that makes them temporarily non sexual and much stronger than the many predecessors. It over winters in Mexico only in a few same places that shouldn’t freeze.and then makes out for Texas and the south to start the migration north. It’s a timing thing to get to both nectar sources and milkweeds in Deep South to feed but also to lay eggs, because by the time their cycle begins the journey back they have morphed into sexual beings and ready to lost eggs. The Deep South is extremely important for their success.