In Stardew Valley, trees do not advance through their growth stages during winter, both outdoors and in a greenhouse, because winter is a dormant season with no growth ticks for trees. This explainer covers how seasons work, why trees pause in winter, and what you can do with trees during the cold months.
How Seasons and Growth Work in Stardew Valley
Stardew Valley runs on a seasonal cycle of spring, summer, fall, and winter, each lasting 28 days. Time progresses in discrete ticks, and crops, trees, and creatures advance based on whether the current tick supports growth for that entity. Temperature and season ID determine which entities are updateable. Winter ticks exist, but tree growth is not among them.
Tree Growth Stages and Requirements
Fruit trees and hardwood trees follow stage-based growth. Fruit trees move through sapling (1 day), tiny (2 days), small (2 days), and finally big (8 days), after which they produce fruit on a roughly 7–8 day cycle. Hardwood trees follow a similar pattern with multiple growth stages before maturing. Each stage requires the tree to be in a valid, growth-enabled tick.
Stage-Based Milestones for Fruit Trees
| Stage | Approximate Real Time | Progression in Winter |
|---|---|---|
| Sapling | 1 day | Not advanced in winter |
| Tiny | 2 days | Not advanced in winter |
| Small | 2 days | Not advanced in winter |
| Big (produces fruit) | 8 days | Not advanced in winter |
Stage-Based Milestones for Hardwood Trees
| Stage | Approximate Real Time | Progression in Winter |
|---|---|---|
| Stage 1 | 1 day | Not advanced in winter |
| Stage 2 | 5 days | Not advanced in winter |
| Stage 3 | 7 days | Not advanced in winter |
| Stage 4 (mature) | 10 days | Not advanced in winter |
Winter Mechanics: Outdoor vs. Greenhouse
Outdoors, winter tiles have a season flag that prevents trees from receiving growth ticks. In the greenhouse, which uses a summer tile year-round, trees can grow in spring, summer, and fall, but they still do not grow during in-game winter regardless of location. Therefore moving trees into the greenhouse does not bypass winter dormancy.
Practical Implications for Farming in Winter
Because trees do not grow in winter, you should plan harvests and foraging before winter begins or manage other activities during the season. Winter is better used for processing resources, upgrading tools, mining, fishing, and completing bundles rather than expecting tree growth. Understanding this prevents wasted effort and helps optimize your seasonal planning.
Common Misconceptions and Edge Cases
Some players may believe that trees in the greenhouse or behind trees in the Travel Journal can grow in winter, but this is not the case. Game code and observed behavior confirm that winter ticks do not contain tree growth updates, even in heated or indoor environments.
Key Takeaways and Summary
- Trees do not grow during winter in any outdoor or greenhouse setting.
- Tree stages pause and resume in spring.
- Use winter for other farm activities and resource management.
- Plan planting and foraging schedules around seasonal growth ticks.
Strategic Planning Around Tree Growth Cycles
Design your farm and foraging routes so that trees reach maturity before winter, ensuring you can harvest fruit and timber across all seasons except winter. Rotate planting schedules so growth stages align with favorable seasons, and use winter as a time for processing, mining, and infrastructure upgrades.