Sunday

ferrous sulfate 硫酸第一鉄

I wasn't happy with the pinkish hue of the pigment I added to the concrete. 

So, I researched how to stain concrete with ferrous sulfate. FeSO₄.xH₂O
硫酸第一鉄
   A kind of iron salt that dissolved in water. I applied it with a brush and it oxidized within minutes giving an orange rusty hue instead. 
 
 
Now I just need some dirt....and seeds.