Here, on the shore of Truman Lake in southern Missouri, our temperatures in the last two weeks have been in the 50's, 60's, and even 70 degrees on occasion. The tulips I planted last fall, are coming up, with some above the ground 1/2 inch and others are 3 inches high above the ground. I covered them with blankets the first night of below freezing temperatures (20 degrees Farenheit, after 70 degrees the day before) Then, the second night of below-freezing temperatures, I decided to cover the tulip tips entirely, that were above the ground, with garden soil that had a high content of peat moss. I reasoned that would be lighter weight on the green tulip tips. ( I didn't have other mulch, which I would have preferred using.) My question is, have I just killed my tulips for this spring? If I had left the 3 inches of growth-above-the-ground, with no protection/covering during the nights of 20 degree temperature, what would have been the immediate damage, and how would that exposure have effected the appearance of the plant and its bloom in the spring? Thanks for any advice. Marguerite Ruch