Buy RS3 Whiteberry seed
The whiteberry seed is a Farming seed in RuneScape 3. Plant it in a bush patch to grow a bush that gives white berries. You need level 59 Farming to plant it. One seed fills one patch.
The bush takes 2 hours and 40 minutes to grow. Planting the seed gives 78 Farming XP. Checking the grown bush gives 437.5 XP, and each berry you pick gives 29 XP. The bush holds up to four berries at a time, and it regrows one berry every 20 minutes after you harvest. A nearby farmer will watch your bush for 8 bittercap mushrooms.
White berries are used to make Super defence potions. They also work in pink dye, redberry juice, supercompost, fruity mush, and variety mush. Pink dye made from these berries is needed in The Hand in the Sand quest.
Bush patches sit west of the Champions Guild, in Rimmington, south of Ardougne, in southwest Etceteria, and in the Crwys clan district. The seed is stackable, tradeable, and weighs nothing, so it is easy to keep a supply for your Farming runs.