Mushroom Log

The Mushroom Log is a crafted item that produces mushrooms. The crafting recipe is learned at Foraging level 4, and 4 Mushroom Logs can also be obtained as the seventh prize from the Prize Machine with a 33% chance. Harvesting from a Mushroom Log grants 5 Foraging XP.

A Mushroom Log produces mushrooms every 4 days, though rainy days shorten this cycle by 1 day. It produces in every season, and it can be placed in the Desert and on Ginger Island as well as on the farm. The log’s output is not fixed: both the number and type of mushrooms depend on nearby wild trees.

The number of mushrooms produced increases with the amount of nearby wild trees, meaning non-fruit trees within a 7×7 area centered on the log, including immature trees. The game uses that tree count to determine a result between 1 and 5 mushrooms, so placing the log near a dense cluster of trees raises the yield. Ten nearby trees are enough to guarantee the maximum yield of 5 mushrooms.

The mushroom type is also influenced by nearby trees. The game first creates a base pool of mushrooms from nearby trees, then adds one additional possible mushroom for each mature tree. The final mushroom is chosen at random from that pool, which means a Mushroom Log cannot be forced to produce only one kind of mushroom. In practice:

• Oak Trees add Morel.
• Pine Trees add Chanterelle.
• Mystic Trees add Purple Mushroom.
• Maple Trees add either Red Mushroom or Purple Mushroom.
• Other mature tree types use the same general distribution as the base pool.

Because the base pool always includes Common Mushroom, Red Mushroom, and Purple Mushroom, even a setup focused on one tree type can still produce other kinds. Immature trees contribute to the base pool size but not to the special mushroom additions, so fully grown trees matter most when planning a Mushroom Log layout.

Mushroom quality also depends on nearby trees. The quality is not affected by the Botanist profession. Instead, each nearby tree is counted, with mossy trees counting twice, and that total determines the chance to upgrade quality repeatedly from normal to silver, gold, and iridium. More nearby trees and more moss increase the odds of higher quality mushrooms. At 20 counted trees and moss, for example, the quality distribution is evenly split in a way that gives a strong chance of silver, gold, and iridium results, and at 40 or more counted trees and moss, mushrooms are always iridium quality.

Because both yield and quality scale with surrounding trees, the Mushroom Log works best when placed in a deliberately planted tree cluster. This makes it one of the few farm devices whose performance improves directly from forestry planning rather than open space.