Just depends wether you soaked the seed first you should always germanate the seeds first this give's you a far better chance of success.if nothing has happened in 7 days then i would be very worried germanate the seed before planting and when you do plant,plant just below the surface say 5 mm this will force the seed through alot quicker.if the seed is planted the seed has a tendency to curl around it's self kind a growing like a question mark but if you don't over water then it will be fine.