The amount of housing increased 33 1/3% with 4.1.
So did the number of gardens and flowerpots.
But there has been no increase in the topsoil supply. Prices on Sarganatas have more than doubled on G3 Thanlin and almost tripled on G3 Shroud.
The easiest way to address this problem would to make the G3 topsoil nodes pop twice a day.
Another way would to introduce new varieties on topsoil in the 4.0 areas, properties to be determined by the devs.
But please do something.