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Helianthus, Annual Sunflower, Common Sunflower 'Skyscraper'

Helianthusannuus

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Helianthus annuus by dave
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Family
Asteraceae (ass-ter-AY-see-ee)
Info
Genus
Helianthus (hee-lee-AN-thus)
Info
Species
annuus (AN-yoo-us)
Info
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
This plant is resistant to deer
Height
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)
Spacing
9-12 in. (22-30 cm)
Hardiness
Not Applicable
Danger
N/A
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Annuals
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Palm Bay, Florida

Carnesville, Georgia

Barbourville, Kentucky

Brandon, Mississippi

Natchez, Mississippi

Bloomingdale, New Jersey

Lenoir City, Tennessee

Manchaca, Texas

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Gardener's Notes:

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T
T
trifunov
Brandon, MS (Zone 8a) | October 2004 | positive

The bloom on this sunflower is easily more than 1ft across the center, not including the petals. The ones I saw tended to droop due to t...Read More

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