Everyone can start seeds indoors in February.  Your houseplants should be showing new signs of growth by now.  This is the time to start feeding them again.  Turn your indoor plants around every few days to avoid leaning or less healthy foliage on one side.  Check your bulbs and discard any that are beginning to rot. 
Geraniums can be fertilized now.  Wintered geraniums should be fed with half strength fertilizer and should be placed in a sunny area (indoors).
Tip:  Use a heating mat underneath seed trays.  This will keep the soil warm, assisting in further germination and the plants will develop a stronger root system.