Knowledgebase
Cutting back milkweed after it blooms #878344
Asked July 22, 2024, 8:41 PM EDT
Hennepin County Minnesota
Expert Response
I cut mine back in late October after a couple of freezes. That is also a good time to collect seed for planting in the fall or next spring. Cutting it back in late fall will also decrease the spread into other areas of the garden.
1.https://www.dnr.state.mn.us/insects/monarchbutterfly.html
2. https://extension.psu.edu/monarchs-and-milkweed/