Knowledgebase
Sedge germination & stratification #852064
Asked October 03, 2023, 6:09 PM EDT
Hennepin County Minnesota
Expert Response
I was able to find the information that sedge seeds require cold stratification and need to be kept in damp sand at 40 F for 2 months for spring planting.
I think dormant seeding would probably work but I will contact the turf group at the University with your question.
https://extension.umn.edu/lawn-care/dormant-seeding
It may take about a week for an answer.
Thank you for your note, Expert. I look forward to hearing anything from the turf group. Further research indicates carex is very challenging to germinate and I may be in over my head. ♂️
The information from the turf group is:
I find information that this is best propagated by division. It is hardy to 20 below.
If you plant in the fall, harvest when the husk is dry and brown and then hang out to dry for several weeks before planting.
To spring plant, stratify in moist sand at 40 degrees for 60 days prior to planting.
i would give it a try, since you have the seed it will only cost you your time. if it works it will be a triumph.