Berries are food, they have a spoil timer, if you put them in any container (planters included) other than a Preservation Box with ice, they spoil. Other things you can grow (aloe, lotus, plant fiber, etc.) are not food and therefore do not spoil. If you put 100 berries in a large chest alongside 100 aloe and come back a few hours later, you’ll see the same result.
Interesting if looking at it as food but never tried to eat plant will see tonight, I saw the berry as an ingredients and other plant ingredients do not decay… I still feel if put in a plant to grow plants should stop decay as like in real life the plants transplanted to planter can be stable.
I’m certain the behavior is intentional, but it’d be a nice feature to have, especially at the lower levels. At end-game, of course, you could just make a fridge dedicated to berries. I wish they’d increase the stack size, as well.
I wish the growing system would be a little more self-sustained. You have to farm [plant] to get [plant seeds], you can get more [plant] by growing [plant seeds] but eventually you run out and have to go back out and farm again. If I were growing [plant] it should also produce [plant seeds] as well as [plant]. You would just have to keep fertilizer on it to keep it going.