Posted: 03/09/2014 at 10:41
How long has your cousin had it? I don't suppose it's been stored in optimum conditions?
That being said, what've you got to lose? I'd try sowing it pretty thickly, that way if half of it germinates you'll have reasonable coverage. If none of it has germinated in 10 days time buy some fresh and have another go. Conditions are perfect at the moment.