10 Purple Perennials to Plant for Beauty Each Year 

Ragweed (Ambrosia spp.) has deeply lobed, finely split leaves. Small greenish-yellow or brownish flower spikes grow from its modest green blossoms.  

Ragweed 

Appearance 

Goldenrod (Solidago spp.) is a herbaceous perennial with narrow, lance-shaped leaves and dense, plume-like inflorescences of tiny, yellow flowers.  

Goldenrod 

Ragweed flowers in late summer to early fall, usually August–October, depending on area.  

Ragweed 

Blooming Time 

Along with ragweed, goldenrod flowers in late summer to early fall. Late summer to fall is its blooming season.  

Goldenrod 

In sensitive people, ragweed pollen can cause hay fever symptoms as sneezing, runny nose, and itchy eyes.  

Ragweed 

Allergies 

Goldenrod is not as allergenic as many think. Heavy, sticky pollen reduces airborne allergy risk. Bees often pollinate goldenrod.  

Goldenrod 

Ragweed is invasive and can outcompete natural plants. Wind-dispersed pollen can travel far, causing seasonal allergies.  

Ragweed 

Ecological Role 

Goldenrod provides nectar and pollen to bees and butterflies in late summer and fall, when other food sources are short. It is vital to native plant communities and meadows.  

Goldenrod 

Growing Succulents 101: What You Need to Know 

Also See