The characteristics of convective and stratiform regions are listed and include the main ice growth processes. Deposition occurs in both regions due to ice supersaturation, but riming is more extensive in convective regions and aggregation is more extensive in stratiform regions. The difference in ice growth processes is due to variations in vertical motions and associated cloud liquid water content. Strong vertical motions in convective updrafts provides copious supercooled droplets for riming. Weaker vertical motions in the stratiform updraft results in lower concentrations of supercooled droplets and less riming. The relatively quiescent environment of the stratiform region is conducive to aggregation. The term, seeder-feeder, can be applied to stratiform regions since ice advected from convective regions seeds the stratiform updraft. This ice then grows by deposition, feeding off of ice supersaturation within the stratiform updraft.