I found my hollyhock plants from last year. We had a warm week in February and they came up and the froze again. They look pretty rough and I lost half the plants. At least the apple tree didn't blossom early! We haven't had apples for 2 years because of late frosts!
I prefer flowers with strong sweet scents. Unfortunately, DH is allergic to jasmine, honeysuckle, and wisteria so those are out. But I LOVE the old damask roses, even though they only bloom for 2 weeks. Just one plant will be enough to perfume the entire yard with the most heavenly perfume. I also like sweet peas, nicotiana, moonflower and mignonette. I try to plant a few around the vegetables every year, but I don't always manage it.