Hi this summer I planted a butterfly garden and included a bunch of milkweed plants. Over the last month, the pods have exploded with seeds. I was wondering if I could plant those seeds now or harvest the seeds and plant them in the spring. thanks
You can do either, and since you have many, it might be best to try both.
The main thing to remember is that milkweed (Asclepias) seeds need a period of cold (stratification) before they can germinate.
Those planted in the fall have the period of winter to supply this. If you plant seeds in the fall, mark the area so you don't forget and disturb them when gardening in the spring.
To plant in the spring, you can put the seeds in a paper bag, then into a ziplock bag and store them in your refrigerator until planting.