I am thinking about ordering some bulbs to put in this weekend but do you think the ground will freeze with the cold snap this week?
I'm north of Boston.
No. The cold snap will be brief and the ground is still warm. There might be a very surficial layer of frozen ground on 1 or 2 cold mornings, but the temp will be back up to near 60 again by Friday and will stay mild through the weekend. So you should be OK.