A: As a rule of thumb, most seeds will germinate within 14 days from the date that they were sown. If the seed needs to be stored for any length of time, then it is best to sow in soil or grow in a propagating tray. In this case you can usually start your plants off at about 40 degrees centigrade (104°F). This temperature should be maintained until your plant has developed its standard pot size. After this point, you are ready to move them into individual pots and introduce them into their indoor garden environment after all danger of frost has passed. Remember though that the earlier you sow your seedlings outside, the better results you will have if planted out later on during spring or summertime..