Lum

Lum is a type of Berry that can be planted in Farm. It can be obtained by surrounding an empty plot with all 8 berries from page 1 in the ripe stage.

Strategy and important notes
The total growth time to achieve a field full of ripe gen 1 berries (without modifiers) is short at only ten minutes, but the Lum berry can be challenging to obtain. This is primarily due to the high mutation rates of unwanted berries that can mutate on center space, as well as the short ripe-death time of Gen 1 berries. It is common to go through many full cycles of this growing process before a single Lum has been successfully mutated. As the growth time is so short, if you use the Sprayduck be sure to switch it to another Oak item as soon as the Cherri berry is ripe. Furthermore, while getting two cycles of Cherri berry ripeness is possible in one Sitrus ripe cycle, it is often difficult to coordinate this timing with the other berries. When all 8 berries are ripe be sure to apply a surprise mulch to the center plot and shovel any unwanted berries as they appear. Diligently watching your plots during this process may dramatically reduce the number of Lum attempts necessary to achieve the mutation.

Possible Planting Formations
You can fill your farm in following way to obtain Lum berry.