No, zinnias don't come back every year as they are annual plants. This means that the flowers complete their entire life cycle in one year.
Zinnias are annuals, meaning that they go from seed to flower to seed quickly.
Benary's Giant Series: The largest-flowered varieties in the zinnia family, plants often reach 4 to 5 feet (1.2 to 1.5 m) tall and have a high percentage of huge double flowers. They come in a wide range of colors (12 total) and are known for their strong stems and good disease resistance.
They are very prone to powdery mildew and spacing them at least this far apart allows air to circulate between them, which helps keep them healthy. They also need full sun, but if they get some afternoon shade that's okay too as they will start wilting once temps reach the high 90sº.. . . . .364011235311!]0000000000000009783314146995!]
