Knowledgebase
Purple Ball Plants #948184
Asked November 06, 2026, 12:21 PM EST
Genesee County Michigan
Expert Response
Hello,
That plant is an allium, probably garlic chives (Allium tuberosum). Read about it here: https://plantfinder.mobot.org/PlantFinderDetails.aspx?kempercode=u770
And here: https://hort.extension.wisc.edu/articles/garlic-chives-allium-tuberosum/
And here: https://extension.umn.edu/garden-and-home/yard-and-garden/gardening-in-minnesota/growing-chives
You can cut them back at any time, after they have flowered and in the fall.
Thank you for contacting Ask Extension.