What kind of milkweed do you have? You can still plant milkweed, just keep it watered. If you can, it would be great to plant more milkweed for next year, and you can sow seeds nowtheyll stay dormant until after winter/spring. Some patches of milkweed (and different kinds is even better) around your yard is ideal. A female wont lay all her eggs on one plant; she tends to flit around to different plants which is smart to disperse her eggs. Very few eggs laid make it to adulthood, and the eggs and young caterpillars can be eaten by any number of predators/parasitic wasps/flies (generally excepting mammals/birds ).
Eggs are laid on the underside, and Im not so sure if youll find any more eggs now; right now is sort of transitional time between the reproductive ones and the ones that migrate for our area. They are different.
An important thing, really important– is to have nectar plants that are fall blooming because you could have Monarchs that are migrating from further north come through your yard. Thats where native asters and goldenrods and annuals like zinnia and Mexican Sunflower come in really handy. The Monarchs have to GAIN weight as they travel down to Mexico because they will not feed while they hibernate. I guess that on warmer days they wake up a little and might get to some water, but thats it.
I think we are planning on having some seeds available, and I can try to pot up a lot of seedlings I have that are about a foot tall (too many in one section). Mine are mostly Swamp/Rose Milkweed. I still have some Showy Goldenrod seedlingsI can pot those up too. If anyone has any extra small yogurt containers and potting soil, thatd be helpful.
Photo Credit : Nancy Ortenberg