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Colorado · September

What foragers look for in Colorado in September

10 of the 12 species on the Colorado calendar have September 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.
‹ AugustOctober ›
  1. Prickly pearOpuntia spp.
    Records rising
    86% of this row's peak · iNaturalist research-grade observations, Colorado · n=81 (19 in September)
  2. SumacsRhus spp.
    Records tailing off
    71% of this row's peak · iNaturalist research-grade observations, Colorado · n=419 (57 in September)
  3. ElderberriesSambucus spp.
    Records tailing off
    39% of this row's peak · iNaturalist research-grade observations, Colorado · n=167 (35 in September)
  4. American plumPrunus americana
    Records tailing off
    39% of this row's peak · iNaturalist research-grade observations, Colorado · n=248 (43 in September)
    USA-NPN cross-check: 9 "Ripe fruits" plant-year records in Colorado peak in August.
  5. ChokecherryPrunus virginiana
    Records tailing off
    33% of this row's peak · iNaturalist research-grade observations, Colorado · n=103 (11 in September)
    USA-NPN cross-check: 40 "Ripe fruits" plant-year records in Colorado peak in August.
  6. Blackberries, raspberries and relativesRubus spp.
    Records tailing off
    33% of this row's peak · iNaturalist research-grade observations, Colorado · n=518 (91 in September)
  7. Blueberries, huckleberries and relativesVaccinium spp.
    Records tailing off
    32% of this row's peak · iNaturalist research-grade observations, Colorado · n=57 (9 in September)
  8. Oyster mushroomsPleurotus spp.
    Records tailing off
    27% of this row's peak · iNaturalist research-grade observations, Colorado · n=296 (16 in September)
  9. Serviceberries (juneberries)Amelanchier spp.
    Records tailing off
    20% of this row's peak · iNaturalist research-grade observations, Colorado · n=198 (15 in September)
  10. ChanterellesCantharellus spp.
    Records tailing off
    19% of this row's peak · iNaturalist research-grade observations, Colorado · n=172 (23 in September)

None of the rows peaks in September in Colorado. Records of Wild strawberries drop below the listing line after August. "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.

‹ AugustOctober ›

Questions

What do foragers look for in Colorado in September?

In public records for Colorado, people most often report these in September: Prickly pear, Sumacs, Elderberries, American plum, Chokecherry, Blackberries, raspberries and relatives, Blueberries, huckleberries and relatives, Oyster mushrooms. 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

Wyoming in SeptemberNebraska in SeptemberKansas in SeptemberOklahoma in SeptemberNew Mexico in SeptemberUtah in September

Colorado: the whole year · September 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, Colorado, 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, Colorado, 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 10 rows above are the species with at least 10% of their peak-month count, and at least 3 records, in September in Colorado. 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.

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