Crop Mutation

Fruit and vegetable crops make up the majority of the mutations in Harvest Moon: One World. Each family is made up of a parent crop and its 7 mutant children. Growing the fruits and vegetables in the proper field and season can trigger a mutation. Selling a specific number of the mutated variety will unlock the seeds in select vendor shops.

Cabbage

The seeds for this big leafy orb is typically found in the Lebkuchen area, but if you have a bit of luck on your side, you can sometimes find a Dome Cabbage wisp on the river side of Braden's farm during the beginning of the game. It's quite uncommon, but it is there! You'll also need to collect Pointy Cabbage as part of the story, which you can find in the wilderness area between the cocoa tree grove and the Harvest Goddess Spring.

Cabbage takes 4 days to mature and can only be harvested one time.

Onion

Tomato

The first wisp for Tomato can be found on Braden's farm in Calisson, by the southwest edge of his cow pen. Tomato can be harvested multiple times. Once a tomato plant mutates, it will continue to produce mutated crops until the crop stops producing.

Tomato takes 5 days to mature, regrows in 2 days, and can be harvested two times.

Strawberry

This berry has several Harvest Wisps in the little alcove along the road from Lebkuchen to Salmiakki, just a bit north of the Lebkuchen mine. The parent fruit doesn't sell for a lot, but once the mutations start to trigger, the Strawberry family becomes the favorite crop of many One World farmers to sell for profit.

Strawberry takes 6 days to mature, regrows in 3 days, and can be harvested two times.

Corn

Wheat

This grain is used in a lot of cooking recipes such as meuniere, breads, and cakes. There are several Harvest Wisps for wheat such as three wisps in the large alcove between Lebkuchen and the Pastilla desert, or two wisps in the small alcove where the Speckled Bear is on the path to the lava field. There is another wisp point behind the ruined castle, by Shogen and Sana's house, and and near the red Torii gate on Wagashi island.

Wheat takes 4 days to mature and can only be harvested one time.

Rice seeds do not appear in any store, but Rice Harvest Wisps are plentiful around Wagashi. Rice and Lava Rice appear in the game when you purchase the separate Far East Adventure DLC.

Potato

There are a few places where you can find wisps that hand over Potato seeds. There is one in the apple grove just north of the farm in Calisson. There's another on the road leading from Mom's house towards Calisson, just a little bit up the path from Mom's. A third is on the eastern side of the livestock fence at Braden's farm.

Potatoes take 6 days to mature, regrows in 3 days, and can be harvested two times.

Carrot

These crunchy root vegetables can be found along the path between Calisson and Halo Halo. You'll find a carrot wisp Harvest wisp in the crop field area to the south of the wedding pavilion, another one along the road before you reach the split that leads to the Halo Halo mine, and then a third on the other side of the river on the way to the Harvest Goddess shrine.

Carrots take 3 days to mature and can only be harvested one time.

Spinach

The Harvest Wisps that hold Spinach Seeds are around the Lebkuchen area. There's one in Tristan's farm area, and another in the large clearing past the Lebkuchen farm area. There is another one south of Lebkuchen, at the little alcove with 1 field square. Another is in the area between the Salmiakki Lake and the Salmiakki Mountaintop. One more is on the Wagashi farm area, close to the Sparky machine.

Spinach takes 3 days to mature and can only be harvested one time.

Green Bell Pepper

The bell pepper wisps are found in the wilderness area between Calisson and Halo Halo. You can also find the second-generation Red Bell Pepper wisps on the farm area in Calisson. The produce doesn't sell for a lot of money, but they can be harvested multiple times. The Purple Bell Pepper (which is actually green colored) and the Snow Bell Pepper don't seem to appear in any stores, even after selling a lot of them.

Bell Pepper takes 5 days to mature, regrows in 2 days, and can be harvested two times.

Eggplant

Soybeans

Broccoli

Pumpkin

This green squash has a single Harvest Wisp located in the upper area of Calisson, around the same spot where you'll find Samantha wanders around. It appears regulary, so it shouldn't take you too long to unlock the seeds in the Pastilla general store. The pumpkin appears as a green vegetable because pumpkins (Kabocha) in Japan are typically green and not orange like they are in western regions.

Pumpkin takes 6 days to mature, regrows in 2 days, and can be harvested two times.

Lettuce

Celery

Pineapple

Typically, this crop sold for a lot of money; but in this version of Harvest Moon, you won't become a millionaire selling pineapple. There are a lot of wisps that carry Pineapple seeds though. The base-level Pineapple has many wisps found along the path between Calisson and Halo Halo, and wisps for its child mutations can be found in the Pastilla desert.

Pineapple takes 6 days to mature, regrows in 2 days, and can be harvested two times.

Watermelon

The seeds for this tropical fruit is found around the wilderness area directly adjacent to Halo Halo. There's a Watermelon wisp by the small pond directly south of the entrance to Halo Halo, along the path that leads to Calisson. There are a few other Watermelon wisps in this area as well. Even Pastilla has Cannonball wisps fairly close to the city center. You'll need to collect 3 Watermelon as part of the game's story.

Watermelon takes 4 days to mature and can only be harvested one time.

Turnip

Asparagus

The first asparagus wisps you'll come across are along the path from Calisson to Halo Halo, right at the split in the road where the north path leads to the mine and the south path continues onto Halo Halo. The other Asparagus wisps are south after the bridge to Halo Halo; one to the east of the coconut trees and the other is in the jungle farm area.

Asparagus takes 4 days to mature and can only be harvested one time.