can you plant bulbs throughout the winter? or only before the first frost?

My friend who lives and gardens in a small island in the San Juans just wrote and said:
“We have up until Christmas. They still need the cold ground to do their thing properly. I often buy the year’s end at the tulip store on Dec. 1 then plant them sometime in the next two weeks.”

All spring bulbs can be planted at the same time; deeper for the bigger bulbs. Do you have a hungry rodent population? If so, they LOVE tulips and croci.. Daffs have something toxic in the bulb, so the mice, voies, chipmunks avoid them.

thanks that’s good advice

we live in the cold upper midwest US. we have planted bulbs under several inches of frozen solid soil/turf in December and they sprouted and bloomed OK. excavating the frozen ground is much more difficult, but the results were the same. Go for it.