Loadsa Caterpillars

I went out this morning to do a bit of gardening and noticed a Monarch Caterpillar on one of the Swamp Milkweeds. Then another , and another etc. On one alone plant there were 11 caterpillars of varying sizes. Loads of caterpillars on some of the others as well. I'm pleased. I have more Orange Milkweed and more Swamp Milkweed to plant ready for next year.