I have just bought 5kg of grass seed to sow an area of about 1/4 acre of hellish ground in the hope of getting the grass to take and create additional grazing....well make the area green will do! I will be sowing by hand and have some sharp type sand which I thought might be a good idea to mix with the seed to enable me to sow the seed better. I know pretty well how to sow ie up and down and then across the area but wondering how much sand to mix with the seed? I'm going to split the seed I have bought into 6 separate portions for 3 lots across and 3 up and down as could easily see me sowing all of it in too small an area. By splitting the seed up I reckon I can gauge how much is needed better, just not sure how much sand to mix in. Hope someone can advise, thanks in advance.