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Plant Care Guide > Smith's sunflower
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How to Grow and Care for Smith's sunflower

Smith's sunflower

Helianthus smithii grows in wet, mucky soils in marshes, ditches, and roadsides. It is a perennial herb up to 2.5 m (over 2.5 m) tall, spreading by means of underground rhizomes. One plant usually produces 1-15 flower heads, each containing 12–23 yellow ray florets surrounding 100 or more red, yellow, or brown disc florets.

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Watering schedule: Every week

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Sunlight Requirements: Full sun

In This Article
Care Tips
Water
Sunlight
Temperature
Soil
Fertilize
Prune
Propagation
Transplant
Planting
Harvest
Common Pests & Diseases

Planting and Growing Smith's sunflower

ToughnessHigh
Care LevelMedium
LifespanPerennial
Watering ScheduleEvery week
Sunlight RequirementsFull sun
Hardiness Zones
4-9
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