Helianthus annuus

Denver Botanic Gardens
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Helianthus annuus
Common Sunflower

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DERIVATION

annuus

- annual, one year

FAMILY

Asteraceae (Aster Family) Other Plants in the Aster Family

HABIT

Herbaceous

GROWTH FORM

Upright

RANGE

North America

LEAF TYPE

Deciduous

FLOWERS

Yellow;orange;red

FRUIT

Brown

HARDINESS

USDA Zone 2 (Coldest zone where hardy)

SOIL

Well-drained soil

SUN REQUIREMENTS

Sun

SPECIAL CHARACTERISTICS

Steppe Plant Collection | Native Plant Collection | Attracts Butterflies

COMMON NAME(S)

Common Sunflower

Location Map for Helianthus annuus (Common Sunflower) - 2 Map Locations Found
Click a marker pin or a green plant 'dot' for details. Map Help

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Individual Location for Helianthus annuus:
(To display plant details, click a number in the table.)

Map
Key

Accession
Number

Year

Location

1	890587*1	1983	Plains Garden
2	131604*1	2013	Sacred Earth
No Map	202700*1	2020	East Josephine
No Map	220645*1	2022	East Josephine
No Map	240199*1	2024	Seed

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FLOWERING:
When Helianthus annuus has been observed flowering
at Denver Botanic Gardens

2018

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Helianthus annuus Flower\|Leaf Click to Enlarge	Helianthus annuus Flower Click to Enlarge
Helianthus annuus Flower\|Leaf Click to Enlarge	Helianthus annuus Flower\|Leaf Click to Enlarge
Helianthus annuus Flower\|Leaf Click to Enlarge

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Helianthus annuus Flower\|Leaf Click to Enlarge	Helianthus annuus Flower Click to Enlarge
Helianthus annuus Flower\|Leaf Click to Enlarge	Helianthus annuus Flower\|Leaf Click to Enlarge
Helianthus annuus Flower\|Leaf Click to Enlarge