I looked into the code and the chance is 5%. This seems like a pretty sparse article, and it may be intended to be a summary, but I couldn't find a better place to put this number, and fishing already has the percent chance.
Line 115:
Line 115:
|5
|5
|Harvesting
|Harvesting
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|Harvesting crops on the Ginger Island farm occasionally yields golden walnuts, up to a total of 5. Note that only crops that do not regrow and do not require a Scythe to harvest will give Golden Walnuts.<ref name="harvestconditions" />
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|Harvesting crops on the Ginger Island farm has a 5% chance of yielding golden walnuts, up to a total of 5. Note that only crops that do not regrow and do not require a Scythe to harvest will give Golden Walnuts.<ref name="harvestconditions" />