Downy Skullcap, Scutellaria incana The longer I garden, the more I want to grow perennials that bloom for as long as possible ...

Chrysanthemums are one of the most glorious signs of fall, and they can be grown alongside companion plants for an even more ...

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 ...

Welcome shorter days and longer nights with colorful late blooming fall perennials that light up your flower garden.

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 ...

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.

Helianthus eggertii is a rare perennial sunflower of barrens and open habitats in Kentucky, Tennessee, Alabama, and South Carolina in the United States (U.S.). Despite its delisting in the U.S.

Derek Markham is a green living expert who started writing for Treehugger in 2012. This slender spring beauty may be the most well-known perennial vegetable. As demonstrated by its high price in the ...

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 ...

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 ...