photo of Helianthus annuus

Helianthus annuus

Common Sunflower

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Common Sunflower has large flower heads with dark centers and bright yellow rays. The flower heads, which turn to face the sun, bloom on tall,...

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Description:

Common Sunflower has large flower heads with dark centers and bright yellow rays. The flower heads, which turn to face the sun, bloom on tall, hairy stems July-August. Birds love to feast on the seeds, and the nectar is a valuable food source for native bees. Use the taller varieties, which may need staking, in the back of borders, and dwarf varieties in beds or the front of borders.

Plant Details:

Plant Type: Flower, Annual

New Jersey Native: No

Bloom Times: Summer

Bloom Colors: Yellow

Deer Resistance: None

Attracts Pollinators and Wildlife: Bees and Other Pollinators, Butterflies

Salt Tolerance: Medium

Hardiness Zone: 6a, 6b, 7a, 7b

Physiographic Region: All Regions in NJ

Soil Characteristics

Soil Type: Loam, Organic, Sandy, Clay

Soil Moisture: Dry

Soil pH: Acidic, Slightly Acidic, Neutral, Slightly Alkaline

Light Needs of Plant

Optimal Light: Full Sun

Light Range: Full Sun

Water Needs of Plant

Soil Moisture: Dry

Drought Tolerance: Medium

Size and Growth Rate

Height: 3 - 9 ft

Spread: 1.5 - 3 ft

Growth Rate: Fast