On a few of the 1.7 FTB servers, the Botania generating flowers desync from the spreader when a player logs out, unloads the chunk, or walks away. I've done some research and found a few workarounds. - Make a chunkloader (ChickenChunks): This is the most reliable option I have found. Place one near your flowers, and make sure all of the flowers you want loaded are in the range (do this by showing lasers in the GUI.) You will still have to sync them on login, since the chunkloader stops loading when you logout. - Golems: Golems are finikey, but if you can get them to work, they will keep one chunk per loaded at a time. This might also give you a reason to get into Thaumcraft. - Turtles: This is the most advanced solution, since it requires a decent understanding of LUA, but if you can program the turtle to break and replace the flowers they will rebind to the nearest spreader.