6 Tips on Planting Bulbs Late in the Season Bulb-planting tips – late in the season: 1. Look for after-Christmas bulb sales at local stores or nurseries. 2. It’s typically best to avoid bulbs that are mushy or really soft, or have mold growing on them. They most likely won’t make it. 3. Take the chance. Dig the soil (if not frozen) and plant the bulbs. They are better off in the ground or a chilled pot than wasting away in the garage.