Helianthus Species, Neglected Sunflower

Helianthusneglectus

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Helianthus (hee-lee-AN-thus)
Species
neglectus (nay-GLEK-tus)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Hardiness
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Other Details
Category
Annuals
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Propagation Methods
Seed Collecting
Regional

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Gardener's Notes:

0
positive
0
neutral
0
negative
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Sooty Copper
(Heodes tityrus)
Broad-tailed Hummingbird
(Selasphorus platycercus)
Featured
Sooty Copper
(Heodes tityrus)
Broad-tailed Hummingbird
(Selasphorus platycercus)