Sunflower Sunfinity™ (Helianthus interspecific) is a multi-stemmed masterpiece for the garden. They look like happy faces in the garden singing a tune for the pollinators to gather and hum to the beat! These don't grow as tall or big as the original sunflower, but the trade-off is superior. They produce 3-4 feet tall and blooms for twelve weeks in the summer compared to 3-4. The multi-blooms are another indicator that they give you more bang for your buck! Add a cheerful face to your garden!