Rye seeds
From https://fogu.com/hmforum/viewtopic.php?f=35&t=176520
Rye
Sell price: 480g
Used for: Rye Bread (4,320g)
Mutates from wheat planted in Pastilla/Calisson/Halo Halo jungle in summer, or in the Goddess Spring in summer/winter
Wisp location: Lebkuchen area, on a small peninsula near the exit to Pastilla desert (11 AM-5 PM)