Helianthus annuus
Common Sunflower
Description
Sunflowers can grow anywhere from 6'-15' tall on top of thick, sturdy stems. They have large, dark green leaves with bright yellow flowers with tender petals that bloom spring to summer. The flowers need direct sunlight and a lot of water.
Sun
Full
Water
Medium
Growth Rate
Fast
Soil Type
Sandy, Loam, Rocky
Soil Condition
Average, Rich, Poor, Well-drained, Dry
Soil pH
Neutral
Adverse Factors
n/a
Apply as little fertilizer as possible.
If you use fertilizer make sure it stays on the landscape, and carefully water it in so there is NO runoff.