Have had a bit of a disaster with a lawn having applied Weedol and probably because of drought conditions 4 weeks on the grass looks awful . Can anyone recommend a grass seed which germinates and grows quickly.
You shouldn't use Weedol on a lawn. If you were trying to kill lawn weeds then you need a lawn weedkiller which will act only on broad leaved weeds and not kill the grass. Weedol will kill anything green!
All grass seed grows about the same rate so just take your pick. If the grass is in shade then choose one for a shaded area. If you do sow seed keep it moist until it germinates.