Perennial Sunflowers. If you haven’t dabbled in the world of perennial sunflowers, you should know they can spread quickly by rhizomes and are challenging to control in a small space.

Perennial sunflowers often have multi-flowering stems, meaning each stem will produce lots of flowers. They need regular deadheading and cutting back like any other repeat-flowering plant to keep ...

Perennial sunflowers range in height from 2 to 10 feet tall and they are drought tolerant and not fussy about their growing conditions. The dark green leaves create a striking contrast with the ...

Change the water after the sunflowers have been in a vase for two to three days. Start the refreshing process by cutting 1 ...

Perennial sunflowers might not be as dramatic, but they are charming too. They are clump-forming perennials with a shrubby habit that produce flowers on sturdy stems above nice green foliage.

When you hear the word sunflowers, the cheerful, familiar, large yellow blooms of the annual sunflowers come to mind (Helianthus annuus). These vibrant, happy flowers are annuals and are derived ...

Annual sunflowers are some of the easiest flowers to grow from seed, germinating quickly and blooming within 11 to 18 weeks, depending on the growing conditions.While learning how to grow ...

The benefits of sunflowers are so abundant that no yard should be without them. I’m not referring to the large-headed annual cultivars you see growing in a field, but rather the native perennial ...

Sunflowers (Helianthus annua) are among the easiest flowers to grow, and they thrive in the heat of our summers. Helianthus, the scientific name, means “sunflower” in Latin. Not only do ...

Sunflowers famously turn their faces to follow the sun as it crosses the sky. But how do sunflowers “see” the sun to follow it? New work from plant biologists at the University of California, Davis, ...

Sunflowers are gorgeous native plants that can grow to amazing heights in a single year. But are sunflowers perennials that will come back after the winter? That depends on which sunflower you ...