Hey Skyost,
I love your Plugin OwnGarden. I was looking for exactly something like this!

I have to small questions:

Is it possible to add also schematic support for 22 Trees, like 22 oak saplings oder jungle saplings?
Something like this would be incredible cool! You could do this by checking on the BlockGrowEvent if there are 3 not jet grown for example oak saplings next to the Block where a tree is growing. For Big Jungle Trees you might have to work differently.

My other question: Is it possible to add a config option like:

# Default 0 Percent
# Set to for example 50 to have a 50 percent chance that an old tree grows
# Set to 100 to disable 1*1 custom tree planting
oldTreePlantingPercentage: 0

So that you can add a percentage that also normal Minecraft trees can grow.

Those chances would be unbelievable cool!
Thank you for your awesome plugin!