When to Plant
In general, there are two seasons for bulb planting:
Fall
After soil temperatures are below 50ºF/10ºC. These bulbs bloom the following spring and require the cold winter temperatures for development. But let's say winter arrives and your bulbs are still in their bag. Not to worry! Bulbs are pre-programmed to grow so even if you have to plant through snow, plant your bulbs!
Spring
After the danger of frost has passed (tender bulbs love soil that is at least 60ºF/15ºC). These bulbs bloom in summer/fall.