SiO2 wrote:How about natural spreading from initial tree? Does it replace grass biomes? How far can it spread? it takes insane amount of trees to spawn a proper wald patch, I wander if there are ways to optimize things.
Trees planted on grassland tile possibly do not spread Wald.
w11 I remember planting Mulberry Trees on freshly terraformed Dirt and got one or two Wald conversions almost immediately, or within the hour or two that it took for another batch of saplings to sprout on Herbalist's Table.