A lergberry seed is a Herblore HabitatFarming resource, needing a level of 61 Farming to plant it to grow a Lergberry bush. It can attract certain kinds of Jadinkos while it is growing or when it matures. After growing into its full size, the player can pick up Lergberries. To prevent the chance of disease, the Zombie farmer can be paid three red vine blossoms to take care of it.
If the Zombie farmer does not watch the bush for the player, then disease may be removed using secateurs. Successfully pruning the diseased bush will place leaves in the player's inventory. However, sometimes the bush may have to be pruned more than once to successfully remove all of the diseased leaves. If left alone, the diseased bush will die.