How many days should it take for germinated seeds to start sprouting through the soil/medium? Im germinting them, then Putting them in Indoor soil into a small flower pots, and put then in the winodwsill. Thats untill i get another 250 watt HPS bulb because mine Busted into pieces. Is this alright to let the newly germinated seeds in indoor soil sit in the Windowsill for 2-3 weeks? until i get a new 250 HPS Bulb??