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 from ...

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’re ...

Strong spring blooms start with one essential step in fall. Knowing when to divide your perennials ensures healthier roots and longer-lasting plants.

As unpleasantly hot and humid as Washington can be in August, there are moments in the garden when it's actually quite agreeable. Find a breezy spot in the shade and take in the late-season lushness.

BOSTON (CBS) - Summer vacations are over and the kids are heading back to school. This should allow for some time to get back into the garden for one last planting of fall blooming flowers before old ...

Swamp sunflowers are tall, native perennials with bright yellow flowers that attract pollinators. Perennial salvias, like ...

We are moving into the later part of summer when all of the spring and early summer perennials have finished up and it is time for those mid- to late-summer bloomers to take front stage. Keeping the ...

July, the height of summer. With the arrival of July we leave behind the lushness of May and June and enter into full summer and a change of colour palette. Early summer is all soft pinks, fresh ...

Genus Helianthus comprises diploid and polyploid species. An autoallopolyploid origin has been proposed for hexaploid species but the genomic relationships remain unclear. Mitotic and meiotic studies ...