Helianthus pauciflorus - Prairie Sunflower
Prairie Sunflower (Helianthus pauciflorus) is a herbaceous perennial and is either unbranched or sparingly branched. Its central stem is typically green or reddish brown with scattered, short white hairs that are rather stiff and give it a rough texture. The opposite leaves can get up to 6" long and 2" across, and are typically found on the lower part of the plant. Its yellow flowers occur individually at tops of the central stem and any upper lateral stems with 10-25 ray florets surrounding many reddish brown or yellow disk florets. The root system produces numerous rhizomes, which can aggressively form dense colonies quickly, and its roots release allelopathic chemicals that inhibit growth of other plants near it.
Soil Moisture: Moderate, Dry
Sun Exposure: Full Sun
Height: 2' - 4'
Spread: 1' - 2'
Hardiness Zone: 3 - 7
Bloom Color: Yellow
Bloom Time: July, August, September
Attracts: Birds, Butterflies, Pollinators, Mammals
There are about 70 species of Helianthus plants that consist of annual and perennial flowering plants, commonly called sunflowers, and are native to North, Central, and South America. They are usually tall plants with disc flowers that for the majority of species are yellow, but there are some species with reddish lobes. Before blooming, young sunflower heads follow the sun across the sky and at night they reorient themselves to face East for the sunrise. Once the flower heads are mature and fully open, they generally stop moving with the sun and remain facing East.
Returns of standard seed mixes and individual species must be made in the original unopened packaging within 10 days of delivery. If you wish to return live plants, you must do so within 5 days of delivery. Returns of standard mixes, individual species, and live plants are subject to a restocking fee of 25%. Custom seed mixes may not be returned. When returning non-damaged goods, the buyer is responsible for shipping charges, and return shipping may be made by whatever means the buyer selects.
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