I don't know if I could pick just one. I love Roses and I also love Sunflowers, Bells of Ireland and Easter Lillies.
I love roses because they are beautiful, and so colorful. They are a real thing to tend to in your garden. You have to nurture them a lot. They have great fragrance and are associated with many meanings.
I love Sunflowers because they seem to say Summer, and happiness in a way. They are a sign of a good garden. They aren't as easy to grow well as people may think. They depend upon a lot of rain and the right soil to be tall and strong. They also attract bees, and birds which are neat to watch coming to them. I like to grow different sizes and colors of them.
I love Bells of Ireland because they are delicate and so unique. Florists use them in arrangements a lot and I see them at both weddings and funerals. They seem to ring in the growing season; as they start coming up in early April.
I love Easter Lillies because they smell fantastic as well as reminding me of the beauty of the Resurrection and of Spring.