Seasons, fish rotations and the festival year

Cozy Grove’s calendar has two layers that look similar but do not behave the same way. There is the visible seasonal year that changes plants, critters and festival décor, and there is the fish rotation that moves in four-month cohorts. Confusing them leads to a lot of pointless casting.

This page explains both, then gives you the festival dates to plan around.

Seasons change on the first of the month

Spry Fox’s support documentation explains that the game internally thinks in 12 seasons, not four:

• Early Winter, Winter, Late Winter
• Early Spring, Spring, Late Spring
• Early Summer, Summer, Late Summer
• Early Fall, Fall, Late Fall

Each calendar month belongs to two of those slices. There is no equinox or solstice changeover; the first day of the month is the switch.

You will see some of these labels in fish data, but the fish rotation has its own rules. Keep reading before using the table to predict what is in the water.

The fish rotation is not the seasonal year

Fish move in six cohorts of 30 species. Each cohort stays in the water for four months, and two cohorts overlap at any time. The official rotation dates are:

• January 1: winter cohort
• March 1: early spring cohort
• May 1: late spring cohort
• July 1: summer cohort
• September 1: early fall cohort
• November 1: late fall cohort

The names are borrowed from seasons, but the windows are four months. For example, the early fall cohort is available September through December. That means November and December can include fish labeled both “early fall” and “late fall.”

The Fish Finder marks the active cohorts based on your month and lets you search by size, rarity and behavior. It is the quickest way to check a specific name.

Seasonal plants and wild trees

The seasonal year affects what appears in shops and in the wild. Two rules are especially useful:

Plants you own keep producing

Once you buy a seasonal berry bush or fruit tree, it does not transform when the season changes. A snowberry bush remains a snowberry bush and continues to produce snowberries, even outside its original season. The shop stock changes; your garden does not.

Wild trees respawn and move

Wild fruit and nut trees respawn and relocate after seven calendar days. If you do not play on the exact day, the change occurs on the next day you play. Their fruit type may change when they respawn, so a tree can be a different harvest after a seasonal transition.

The festival year

Four seasonal festivals bring Ms. Carouse back to the island. The dates below are community-documented; the in-game festival calendar is the final authority, and event display dates were adjusted in patch 5.2.0.

Spring Festival

The longest, most decorative event. Ms. Carouse sells orchid starts and spring clothing, and feather-marked leaf piles can produce duck nests. Raising a duckling is a daily project rather than an instant pet.

The event is also a dye buffet: orchids can be crafted into special dyes, which can then be applied to eligible decorations. If you care about decorating, clear bag space and collect pigments before the festival ends.

Community documentation notes that ducklings migrate when the festival ends and nests are converted. Treat them as a seasonal project, not permanent housing.

Summer Festival

A short fireworks event. Helping hungry or crying imps can award sparks, which are crafted into fireworks. Fireworks produce rewards when launched, and the exact drops depend on the firework tier.

The event lasts only two weeks, so check Ms. Carouse early. If you want the firework rewards, do the imp loop before the final days rather than trying to cram everything in on the last night.

Fall Festival

Trick-or-treating starts after Ms. Carouse’s costume request. Visit the resident bears to collect candy and other treats, then spend candy at her shop. Spooky critter scrolls summon limited-time critters, and pumpkin-based lanterns provide both decoration and light.

This is the festival most likely to disrupt your normal daily route. Budget extra time for a dress-up check, trick-or-treat visits and a critter-catching session.

Winter Festival

The winter event was shortened to five weeks in patch 5.2.0, still starting on December 20. Snow piles provide snowballs and crystals; snowball fights with imps yield more crystals; and Ms. Carouse offers gifts you can give to the bears.

Snow sculptures are temporary. Community documentation notes that they melt into fresh water after the festival, which makes them useful for spring orchid crafting. If you are planning a spring dye project, winter sculptures can be part of the supply chain.

How to prepare for a festival

You do not need a special build or a stockpile of cash. A small preparation routine helps:

1. Clear backpack and storage space. Festival quests add items quickly.
2. Check the event window on the in-game calendar before planning a big decorating project.
3. Keep one or two useful cooked dishes on hand. Some festival loops involve feeding or gifting.
4. Do the first day’s event click before the daily chores, especially in short events like Summer and Fall.
5. Do not sell exclusive event items before checking their donation or crafting use. Seasonal décor and clothing are not always available later in the same year.
6. Read the end-of-event warnings. Some temporary objects transform or leave; permanent items generally stay.

What happens after a festival?

Seasonal characters and event quests leave when the window closes. Items already purchased or crafted generally remain. The most common exceptions are temporary pets or sculptures tied to the festival’s fiction, which can transform after the event.

The next year’s festival is a fresh opportunity to collect anything you missed. Spry Fox’s annual repeat logic was fixed in patch 5.1.0 for long-running saves, so players who keep a save across years should ensure they are on a current build.

The calendar in one sentence

Watch the first of the month for visible seasons, the first of alternating months for fish cohorts, and the in-game festival calendar for limited events. If you only remember one, remember this: the game’s clock is the only clock that matters.

For the exact fish list, open the Fish Finder. For the wider daily rhythm, the 45-minute routine shows where seasonal chores fit.