Forager's Field Notes Get the journal

Minnesota · October

What foragers look for in Minnesota in October

11 of the 24 species on the Minnesota calendar have October records. Listed by how much of each row's year falls in this month.

Never eat anything based on this page or on the app. These tables show when people recorded these species in public datasets. They do not say anything is ripe, edible or safe, and they do not help identify a find. Confirm every find with a qualified local expert.
‹ SeptemberNovember ›
  1. ChagaInonotus obliquus
    Records tailing off
    82% of this row's peak · iNaturalist research-grade observations, Minnesota · n=373 (47 in October)
  2. Giant puffballCalvatia gigantea
    Records tailing off
    80% of this row's peak · iNaturalist research-grade observations, Minnesota · n=957 (321 in October)
  3. SumacsRhus spp.
    Records tailing off
    49% of this row's peak · iNaturalist research-grade observations, Minnesota · n=685 (79 in October)
    USA-NPN cross-check: 65 "Ripe fruits" plant-year records in Minnesota peak in August.
  4. Wild roses (hips)Rosa spp.
    Records tailing off
    39% of this row's peak · iNaturalist research-grade observations, Minnesota · n=49 (7 in October)
  5. Hen of the woods (maitake)Grifola frondosa
    Records tailing off
    33% of this row's peak · iNaturalist research-grade observations, Minnesota · n=549 (117 in October)
  6. Lion's mane and other HericiumHericium spp.
    Records tailing off
    31% of this row's peak · iNaturalist research-grade observations, Minnesota · n=496 (87 in October)
  7. Black walnutJuglans nigra
    Records tailing off
    24% of this row's peak · iNaturalist research-grade observations, Minnesota · n=120 (8 in October)
    USA-NPN cross-check: 11 "Ripe fruits" plant-year records in Minnesota peak in September.
  8. King boleteBoletus edulis
    Records tailing off
    24% of this row's peak · iNaturalist research-grade observations, Minnesota · n=94 (11 in October)
  9. Black trumpets and other CraterellusCraterellus spp.
    Records tailing off
    22% of this row's peak · iNaturalist research-grade observations, Minnesota · n=168 (12 in October)
  10. Chicken of the woodsLaetiporus spp.
    Records tailing off
    21% of this row's peak · iNaturalist research-grade observations, Minnesota · n=2,388 (172 in October)
  11. Blueberries, huckleberries and relativesVaccinium spp.
    Records tailing off
    16% of this row's peak · iNaturalist research-grade observations, Minnesota · n=428 (25 in October)
    USA-NPN cross-check: 8 "Ripe fruits" plant-year records in Minnesota peak in July.

None of the rows peaks in October in Minnesota. Records of Elderberries, Oyster mushrooms, Wild grapes, Chanterelles drop below the listing line after September. "Peak month" means the month with the most records for that row; "rising" and "tailing off" describe the record counts on either side of it, nothing about the plant or fungus itself.

‹ SeptemberNovember ›

Questions

What do foragers look for in Minnesota in October?

In public records for Minnesota, people most often report these in October: Chaga, Giant puffball, Sumacs, Wild roses (hips), Hen of the woods (maitake), Lion's mane and other Hericium, Black walnut, King bolete. This is a list of records, not of anything safe to eat.

Does a record mean it is ripe or edible?

No. A record means someone reported the species that month. It says nothing about ripeness, quantity or edibility, and many have dangerous lookalikes. Confirm every find with a qualified local expert.

Same month, nearby

Wisconsin in OctoberIowa in October

Minnesota: the whole year · October across the US

Source and date

Counts are public records by calendar month, shown as a share of each row's busiest month. A record means someone reported the species that month; it says nothing about quantity, ripeness or safety. Records follow where and when people go out, so busy weekends and popular parks count more than remote ground.

iNaturalist
Research-grade observations, Minnesota, all years to 2026-10-20: mushrooms as all observations; fruit and nut plants as observations annotated "Fruits or Seeds". Retrieved 2026-10-20 from the iNaturalist API. inaturalist.org
USA-NPN
Nature's Notebook "Ripe fruits" phenophase status records, Minnesota, 2009–2025 (one record = one plant in one year, from first to last "yes"). Retrieved 2026-10-20 from the USA National Phenology Network data service, shown as a cross-check where a row has at least 8 records. usanpn.org
Rows
The 11 rows above are the species with at least 10% of their peak-month count, and at least 3 records, in October in Minnesota. Common names are the ones foragers use and are not an identification; the scientific name is the source's taxon.

Record what you find

Forager's Field Notes is a private journal: your own names, your own patches, stored only on your phone. Log a find and your own calendar builds itself, week by week, with a year wheel you can share and a field checklist for next month.

It never identifies species or judges edibility. Free to start, no account.

App StoreGoogle PlayBuild your own calendar