You can buy turnips in Animal Crossing only on Sunday mornings, from a special visitor, and only up until noon.

When you can buy turnips

  • In all main Animal Crossing games, white turnips are sold only on Sundays in the morning.
  • In New Horizons, Daisy Mae appears on your island every Sunday from around 5 a.m. until 12 p.m. (noon) to sell turnips.
  • In earlier games, Joan fills the same role, wandering your town on Sunday from morning until around noon.

Extra turnip basics

  • Turnip prices when you buy are usually in the 90–110 Bells per turnip range, and they’re sold in bundles of 10.
  • You can only buy on Sunday mornings, but you can sell turnips at the shop Monday through Saturday, with prices changing over time.
  • Any unsold turnips will spoil by the next Sunday morning, becoming nearly worthless or requiring disposal depending on the game.

So if you’re wondering “when can I buy turnips on Animal Crossing,” the key is: make sure it’s Sunday and don’t miss the morning window before noon.

Information gathered from public forums or data available on the internet and portrayed here.