Plant as soon as possible when they arrive. Most shippers time the arrival for the best average planting time for your area. I'm in zone 7 and have planted spring bulbs anywhere from end of September to December.
I just got a notice that the daffs I ordered a month ago from Dutch Bulb
>company is shipping, direct from the supplier in Holland. So I can expect
>them in a couple of weeks.
>
>Are there any other zone 4a's out there with rules of thumb for when to
>plant bulbs? I've heard that you should wait for two weeks of night temps
>in the 40-50 F range but most of the falls that I can remember since I
>arrived in Minnesota 8 years ago were pretty zig zag in terms of the temps.
>I think it was last fall that we had temps in the teens then it shot back up
>to the 50s and 60s. I realize that nothing is for sure but has anyone had
>success using a particular plan? When are you thinking of planting your
>bulbs this year?
>
>mm
>