My favorite flowers are blue hydrageas. My wonderful husband gave me this gorgeous blue hydrangea for our one year anniversary. He's so thoughtful! He got it in a pot instead of a bouquet so I could plant it in our front yard at the new house. I've never kept a hydrangea alive in a pot. I've always had good luck with them in the ground in Tennessee but this is a completely different gardening zone. I probably won't be able to plant it until April or May. Any advice from my master gardner friends as to the best way to take care of this until then?