Helianthus, Annual Sunflower, Common Sunflower 'Red Sun'

Helianthusannuus

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Helianthus (hee-lee-AN-thus)
Species
annuus (AN-yoo-us)
Synonym
Sun Exposure
Full Sun
Height
36-48 in. (90-120 cm)
Spacing
6-9 in. (15-22 cm)
Hardiness
Not Applicable
Danger
N/A
Bloom Color
Brown/Bronze
Bloom Time
Late Summer/Early Fall
Mid Fall
Other Details
Category
Annuals
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Regional

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

Natchez, Mississippi

Thomasville, North Carolina

Round Rock, Texas

Featured Videos

Gardener's Notes:

1
positive
1
neutral
0
negative
Sort By:
Sort By:
E
Calgary , AB (Zone 3a) | June 2011 | positive

Germinated outdoors ok, despite the cold night temperatures. Now a 4-leaf seedling after 2 weeks. Will update again once it flowers!
...Read More

J
Davenport, IA | August 2008 | neutral

Germinates in 7-14 days.

Featured
Small Yellow-legged Robber Fly
(Dioctria linearis)
Red-tailed Black Cockatoo
(Calyptorhynchus banksii)
Featured
Small Yellow-legged Robber Fly
(Dioctria linearis)
Red-tailed Black Cockatoo
(Calyptorhynchus banksii)