Okay so my 8 seedlings finally sprouted, but oddly enough, they all still have the seed casing still grasping on top. Is this normal? And is it okay? I planted them a little tight I believe (tapped the soil down) which might have had something to do with it. They look like this picture, but still a little bit shorter. And also, how do I go about watering them? So far I've just been misting the soil generously with a spray bottle, until it is quite wet.