I make a lot of little streams… I tend to chisel the blocks around the edges and could swear I’ve planted grass around the edges before? But perhaps not 
At the new Forest we’re building i can’t plant on the chiselled blocks 
if this is a known thing then ignore me and I’ll just replace the soil with a different colour to match. But I’d really like to plant the grass on there.
Maybe I just used soil everywhere else 
I think grass has been always limited to slope chisel forms (like also farming)
Noo I need bevelled grass
But thank you, I will see if I can work around it with the slope before I replace the blocks
I have in the past. Slope only I think.
only sloped, unfortunately - whenever I want different chiseling, I use rock, gravel and other blocks with no grass;
for grass it’s limited 
Chiseled gravel would probably look very nice for a small stream.
Yeah slope only. I wondered why there were random dirt patches haha, I figured you had plans for some other color grass or something