Michigan statewide apple maturity report – August 27, 2025
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EmailKeep abreast of the latest apple maturity testing done in different cultivars around the state to optimize harvest times for storage and fresh picking.
This report provides data to compare apple maturity across Michigan. This will include information from multiple regions, but if available you should consult a maturity report from your specific region. Regional reports will include more information, including updates on harvest extenders and pest and disease management.
Predicted harvest dates
Table 1. 2025 predicted peak harvest dates.
| Full bloom date 2025 | Predicted harvest date 2025 | ||||||
|---|---|---|---|---|---|---|---|
| Station | McIntosh | Jons | Reds | McIntosh | Jons | Reds | Observer |
| SWMREC | 29-Apr | 30-Apr | 1-May | 2-Sep | 19-Sep | 24-Sep | MSU Enviroweather |
| Deerfield | 26-Apr | 28-Apr | 28-Apr | 29-Aug | 18-Sep | 24-Sep | MSU Enviroweather |
| Romeo | 4-May | 5-May | 6-May | 9-Sep | 22-Sep | 29-Sep | MSU Enviroweather |
| Sparta | 5-May | 6-May | 7-May | 10-Sep | 23-Sep | 30-Sep | MSU Enviroweather |
| Hart | 13-May | 14-May | 14-May | 17-Sep | 3-Oct | 9-Oct | MSU Enviroweather |
| NWMHRS | 16-May | 18-May | 20-May | 19-Sep | 9-Oct | 14-Oct | MSU Enviroweather |
Table 2. 2025 predicted peak harvest dates compared to normal and last year.
| Days -/+ normal | Days -/+ last year | |||||
|---|---|---|---|---|---|---|
| Station | McIntosh | Jons | Reds | McIntosh | Jons | Reds |
| SWMREC | -8 | -3 | -4 | 7 | 9 | 7 |
| Deerfield | -12 | -3 | -14 | 5 | 8 | 8 |
| Romeo | -4 | -3 | -4 | 9 | 4 | 5 |
| Sparta | -6 | -3 | -7 | 9 | 7 | 7 |
| Hart | 1 | 0 | -1 | 11 | 10 | 10 |
| NWMHRS | -3 | 3 | -3 | 8 | 13 | 12 |
- Southwest Michigan
- Grand Rapids, Michigan
- West central Michigan
- Northwest Michigan’s report will begin next week
- Southeast Michigan does not currently have an independent apple maturity report
Check out Michigan State University Enviroweather's Growing Degree Days (GDD) Michigan map. Find your closest weather station, create an account on the website, and track GDDs daily.
Maturity tables and summaries
Apple maturity sampling parameters
- Color % = the visual percentage of red color from 0 to 100; range is of all fruits tested
- Firmness in pounds pressure = measured with a Güss Fruit Texture Analyzer; range is of all fruits tested.
- Starch: 1 = all starch, 8 = No starch; range is of all fruits tested. Using Cornell Starch Iodine Index Chart. See the updated MSU starch chart.
- Brix = % sugar measured with Atago PAL-1 Pocket Refractometer
Suggested firmness and starch index for long-term and shorter-term controlled atmosphere (CA) storage by variety:
| Variety | Firmness (lbs)* | Starch Index* | |||
|---|---|---|---|---|---|
| Short CA | Mid-CA | Long CA | Mature | Over-mature | |
| McIntosh | 14 | 15 | 16 | 5 | 7 |
| Gala | 16 | 17 | 18 | 3 | 6 |
| Honeycrisp | 15 | 16 | 17 | 3.5 | 7 |
| Empire | 14 | 15 | 16 | 3.5 | 6 |
| Early Fuji | 16 | 17 | 18 | 3 | 7 |
| Jonagold | 15 | 16 | 17 | 3.5 | 5.5 |
| Jonathan | 14 | 15 | 16 | 3.5 | 5.5 |
| Golden Delicious | 15 | 16 | 17 | 3 | 6.5 |
| Red Delicious | 16 | 17 | 18 | 2.5 | 6 |
| Idared | 14 | 15 | 16 | 3.5 | 6 |
| Fuji | 16 | 17 | 18 | 3 | 7 |
| Rome | 15 | 16 | 18 | 3 | 5.5 |
| Braeburn | 16 | 17 | 18 | 2.5 | 7 |
Southwest Michigan
Crop loads in southwest Michigan are generally good, with some light crops due to some poor pollination conditions during bloom, hail damage and ongoing dry conditions. In general, apples in central southwest Michigan are predicted to mature a few days to a week ahead of normal due to warm temperatures in the month after bloom. Gala, Honeycrisp, McIntosh and Empire are still at immature starch indices on average, though some Gala strains are ready for controlled atmosphere (CA) storage harvest. See our predicted harvest dates for southwest Michigan.
| Region | Cultivar | Collection Date | Red Color (%) | Firmness (lbs) | Starch (1-8) | Soluble Solids (°Brix) |
|---|---|---|---|---|---|---|
| Southwest | Empire | Aug 25 2025 | 70 | 20.95 | 1.6 | 9.6 |
| Southwest | Gala | Aug 25 2025 | 71.5 | 17.65 | 1.7 | 9.55 |
| Southwest | Honeycrisp | Aug 25 2025 | 65.5 | 15.725 | 2.7 | 10.4 |
| Southwest | JonaGold | Aug 25 2025 | 14.9 | 17.85 | 1 | 9.75 |
| Southwest | McIntosh | Aug 25 2025 | 39 | 15.85 | 2.8 | 9.9 |
Southeast Michigan
Growers in warmer parts of the region (Lenawee and Monroe counties) have already harvested Ginger Gold and Paula Red and are approaching early Gala and Blondee apples. See our predicted harvest dates for southeast Michigan.
Northwest Michigan
Reporting data for northwest Michigan will start next week. See our predicted harvest dates for northwest Michigan.
West central Michigan
Early apple varieties Zestar and Wildfire Gala are being harvested this week. First pick Premier Honeycrisp and Minneiska could be harvested next week. Honeycrisp, McIntosh, Brookfield and Pacific strains of Gala are still immature. See our predicted harvest dates for west central Michigan.
| Variety | Collection Date | Number | Weight (g) | Red Color % | Background | Diameter (cm) | Firmness (lb) | Starch | °Brix |
|---|---|---|---|---|---|---|---|---|---|
| Gala | 8/25/2025 | 290 | 58 | 2.9 | 67.1 | 21 | 1.3 | 9.6 | |
| Gingergold | 8/25/2025 | 511 | 6 | 4 | 81.3 | 17 | 1.6 | 11.2 | |
| Honeycrisp | 8/25/2025 | 400 | 54 | 4.9 | 75.8 | 18 | 1.7 | 11 | |
| McIntosh | 8/25/2025 | 321 | 78 | 5 | 74.1 | 17.9 | 1.9 | 11.7 | |
| Minneiska | 8/25/2025 | 374 | 62 | 2.9 | 73.5 | 16.2 | 2.2 | 13 | |
| Premier Honeycrisp | 8/25/2025 | 514 | 63 | 4 | 80.9 | 12.8 | 4.4 | 12.3 | |
| Zestar | 8/25/2025 | 456 | 51 | 4.6 | 76.7 | 14.4 | 3.2 | 13.1 |
Grand Rapids region
Early apple varieties Zestar, Wildfire Gala and Premier Honeycrisp are being harvested this week. First pick Minneiska could be harvested later this week and early next week. September Wonder Fuji, Honeycrisp, Brookfield and Pacific strains of Gala are still immature. See our predicted harvest dates for the Grand Rapids region.
| Variety | Collection Date | Number | Weight (g) | Red Color % | Background | Diameter (cm) | Firmness (lb) | Starch | °Brix |
|---|---|---|---|---|---|---|---|---|---|
| Gala | 8/26/2025 | 311 | 80 | 2.75 | 67.9 | 20.4 | 1.8 | 10.2 | |
| Honeycrisp | 8/26/2025 | 380 | 40 | 4.4 | 75.7 | 16.2 | 1.8 | 10.3 | |
| McIntosh | 8/26/2025 | 311 | 64 | 5 | 72.5 | 16.7 | 2.1 | 10 |
Upcoming events
Great Lakes Expo
The Great Lakes Fruit, Vegetable, and Farm Markets Expo, held annually in early December at the DeVos Place Convention Center in Grand Rapids, Michigan, is the largest show of its kind in the country. It attracts a diverse audience of apple growers from the Great Lakes region.
This year's apple sections take place on Tuesday, Dec. 9 and Wednesday, Dec. 10.
The Great Lakes Expo, held annually in early December at the DeVos Place Convention Center in Grand Rapids, Michigan, is the largest show of its kind in the country. It attracts a diverse audience of apple growers from the Great Lakes region.
This year's apple sections take place on Tuesday, Dec. 9 and Wednesday, Dec. 10.
Sweet and hard cider: Tuesday morning
|
Paula Englin |
MCA Block Grant Report |
|
Mike and Mark Vansteenkiste |
Making award winning sweet and hard cider at Twin Pines Orchard and Cider House in Ontario |
|
Kevin Halfmann |
Regulations on producing unpasteurized cider in Michigan |
|
Wade Syers |
Cider preservation |
Apple 1: Tuesday afternoon
|
Todd Einhorn |
Apple vulnerability to winter freeze and spring frost events |
|
Jackie Perkins |
Climate Change Adaptations for Pest Management |
|
Randy Beaudry |
Evercrisp, but not ever lasting: Are there strategies to help us preserve Evercrisp quality in Controlled Atmosphere |
|
Renfu Lu |
Robotic Apple Harvesting: Is it a Fiction or the Future |
Apple 2: Wednesday afternoon
|
Julianna Wilson |
Trends and Management Updates on Key Apple Pests |
|
George Sundin |
Fire blight and bitter rot updates |
|
Tom Kon |
Lateral branch induction strategies for apple |
|
Poli Francescatto |
Best Practices and Research Updates for ReTain Use |
Apple thinning: Thursday morning
|
Todd Einhorn |
Michigan State University |
|
Tom Kon |
NC State University |
|
Poli Francescatto |
Valent Biosciences |
|
John Cline |
University of Guelph |
|
Randy Beaudry |
Michigan State University |
Cider contest: Wednesday afternoon
The cider contest will judge the best ciders produced by Michigan cider makers (only Michigan cider producers are eligible). Here are some important details for the contest:
To enter, cider producers must submit two 1-gallon cider jugs at the Exhibitor Registration desk in the Grand Gallery concourse in DeVos Place on Tuesday, Dec. 9, from 8 a.m. to 5 p.m., or on Wednesday, Dec. 10, from 8 a.m. to noon. No entries will be accepted after noon on Wednesday.
Cider samples must be thawed by 1 p.m. on Wednesday (this is the responsibility of each cider producer, not the contest coordinator).
Cider contest judging will be on Wednesday afternoon. Judging will be held in one of the main-level Grand Gallery meeting rooms and will be open for viewing starting at 1:30 p.m.
The top five winners will be notified prior to the EXPO Social so they can be in attendance. Winners will be announced at the EXPO Social on Wednesday evening. First place receives a plaque and a traveling trophy. Second and third places receive a plaque.
Don't miss this valuable opportunity to connect with industry experts, gain valuable knowledge and explore the latest advancements in the apple industry.
We look forward to seeing you there!
To get a better sense of the Great Lakes Fruit, Vegetable, and Farm Market Expo, check out this video.
Related articles
- The 2025 Michigan apple crop forecast, as given at the USApple Outlook meeting
- Predicted apple harvest dates for 2025 from MSU Extension.
- More information on harvest management tools and timings from MSU Extension.
- Post harvest treatments to extend apple life.
- Guidelines from MSU Extension to check for apple maturity in your own orchard, including specific pressure and starch recommendations by variety.
- Predicting apple maturity and starch chart from Cornell University.
