I plant vinca in planters on my deck. They do well for me if I can keep the squirrels from digging. I like them because they seem to always be blooming. I love potted flowers on the deck.
Last year I saw a new ( for me) plant that caught my eye so much I splurged and bought it. It did extremely well and was in bloom all summer long. It became my favorite flowering plant ever. Everyone stopped to admire it and asked what it was.
Unfortunally, I had no idea. I threw away the tag with the information. This year, I found them again and purchased three of them.
They are called Dipladenia and require full sun. I got mine at the Home Depot. Last year they only had pink. This year they have pink, fuschia and white. If you need
an annual for a sunny location, you will not be disappointed with this plant. I am potting them up today. They do well planted in the garden too.
PS. I posted a stock pic of the flowers, it's not of my home.