Fall bulbs are a plant species that need to be planted in the ground in the fall. They require a cold period of a minimum of 6 weeks to form roots. They will bloom at different times in the spring depending on variety, warmth, and lighting conditions. 

Fall bulbs are best planted before the first hard frost. It must though be after the temperature stays below 18°C during the day. This is typically from late September to early November in Manitoba.