Helianthus annuus
Common Name(s):
- Phonetic Spelling
- hee-lee-AN-thus AN-yoo-us
- Description
-
Common Sunflower is and annual in the Asteraceae (daisy) family. It ommonly seen growing along roads, fences, fields, and in waste areas west of the Mississippi River and is the state flower of Kansas. Hybridization has produced many cultivars, expanding the range of flowers from the common yellow to red, mahogany, bronze, white and bi-colors.
This plant is grown commercially as food for birds, livestock and humans. Steamed buds have an artichoke flavor.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- 'Full Sun Single'
- 'Suncredible Yellow'
1st Place in the 2019 NC State Annual Color Trials (in ground plantings)
- 'Full Sun Single'
- 'Full Sun Single', 'Suncredible Yellow'
- Tags:
- Cultivars / Varieties:
-
- 'Full Sun Single'
- 'Suncredible Yellow'
1st Place in the 2019 NC State Annual Color Trials (in ground plantings)
- 'Full Sun Single'
- 'Full Sun Single', 'Suncredible Yellow'
- Tags:
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-
Attributes:
- Genus:
- Helianthus
- Species:
- annuus
- Family:
- Asteraceae
- Uses (Ethnobotany):
- Indians ground the seeds into flour and baked into cakes. They applied a poultice of crushed plants to snakebites and also used an infusion of the flowers for chest pains or pulmonary problems. The seeds can be used to make a purple-gray dye.
- Life Cycle:
- Annual
- Recommended Propagation Strategy:
- Seed
- Country Or Region Of Origin:
- Western United States
- Distribution:
- AK , AL , AR , AZ , CA , CO , CT , DC , DE , FL , GA , HI , IA , ID , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY. Naturalized in NC.
- Wildlife Value:
- It is a great late-nectar plant for butterflies including monarch's and other pollinators. This is a larval host plant that supports Silvery Checkerspot (Chlosyne nycteis). The Silvery Checkerspot has at least 1-2 broods in the north from June-July in the deep south and Texas, they have as many as 3-4 broods from May through September. Birds are attracted to seeds so leave standing dead flowers into the winter as natural bird feeders. Members of the genus Helianthus support the following specialized bees: Andrena (Callandrena s.l.) accepta, Andrena (Callandrena s.l.) aliciae, Andrena (Callandrena s.l.) helianthi, Melissodes (Eumelissodes) agilis, Dieunomia (Dieunomia) heteropoda, Megachile (Sayapis) pugnata, and Paranthidium (Paranthidium) jugatorium.
- Edibility:
- Seeds are used for cooking oil, livestock feed, and as a snack food or garnish. Petals are edible and young flower buds can be steamed like artichokes.
- Dimensions:
- Height: 1 ft. 6 in. - 10 ft. 0 in.
- Width: 1 ft. 6 in. - 3 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Annual
- Edible
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Erect
- Growth Rate:
- Rapid
- Maintenance:
- Low
- Texture:
- Coarse
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Soil Texture:
- Clay
- Loam (Silt)
- Sand
- Soil Drainage:
- Good Drainage
- Available Space To Plant:
- 12 inches-3 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
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Fruit:
- Fruit Color:
- Black
- Brown/Copper
- Fruit Value To Gardener:
- Edible
- Display/Harvest Time:
- Fall
- Fruit Type:
- Achene
- Fruit Length:
- < 1 inch
- Fruit Width:
- < 1 inch
- Fruit Description:
- Seeds are ovoid and somewhat flattened
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Flowers:
- Flower Color:
- Brown/Copper
- Gold/Yellow
- Orange
- Flower Inflorescence:
- Head
- Flower Value To Gardener:
- Edible
- Good Cut
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Radial
- Flower Petals:
- 7 - 20 petals/rays
- Flower Size:
- 3-6 inches
- Flower Description:
- Ray flowers surround the center disc flowers and can be up to 5 inches across. Rays are yellow and disc flowers are brown to yellow to orange. Blooms mid to late summer.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Green
- Leaf Feel:
- Rough
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Lanceolate
- Leaf Margin:
- Dentate
- Hairs Present:
- Yes
- Leaf Length:
- > 6 inches
- Leaf Width:
- 3-6 inches
- Leaf Description:
- The hairy leaves are alternate but may be opposite lower on the stalk. Margins are cordate and the shape is lanceolate. They can be up to 12 inches long.
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Stem:
- Stem Color:
- Green
- Red/Burgundy
- Stem Is Aromatic:
- No
- Stem Surface:
- Hairy (pubescent)
- Stem Description:
- Erect rough-hairy stem
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Landscape:
- Landscape Location:
- Meadow
- Naturalized Area
- Landscape Theme:
- Butterfly Garden
- Cottage Garden
- Drought Tolerant Garden
- Edible Garden
- Pollinator Garden
- Design Feature:
- Border
- Mass Planting
- Attracts:
- Butterflies
- Pollinators
- Songbirds
- Specialized Bees
- Resistance To Challenges:
- Deer
- Drought
- Dry Soil
- Poor Soil
- Problems:
- Weedy
