Firebush Germination:
1) Soak seeds in warm water for 24 hours. A thermos will help keep the water warm.
2) Cold stratify by placing the seeds in a bag of moist vermiculite for 60 days. Be sure to periodically check them so they don't dry out. Keep it moist at all times, but Never wet.
3) Use a well mixed & well draining "soilless" potting mix. Don't use regular commercial potting soils.
3) Use a heated propagator to keep the soil temperature at 70 degrees F.
4) Sow the seeds on top of the soil, and cover with a very thin layer of sand as they need light to germinate. Place them in a sunny window, or use a bright grow light.
5) Periodically keep moisture levels in check. If it starts to dry, mist them with a spray bottle until moist. 
6) Patience is required as germination is erratic with Firebush seeds. Germination will take place anywhere between 14-60 days, so don't toss out what doesn't sprout quickly as they are still good and only need more time.