Sawtooth Sunflower

Sawtooth Sunflower

Botanical Name: Helianthus grosse-serratus

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Colour: Yellow

Sawtooth Sunflower can be distinguished from other Sunflowers by its red, smooth stems.

Most sunflowers are rhizomatous and can also be aggressive and therefore may not be suitable for small landscape plantings.

Sawtooth Sunflower thrives in both disturbed and high quality sites, sometimes forming large colonies that exclude other plants.

 

Other Characteristics

Sun/Shade: Full Sun

Planting and Care Considerations

Low maintenance. It requires lots of room because of its large (sometimes huge) size and aggressive tendencies.

This robust plant will tolerates many kinds of soil. Powdery mildew may affect the leaves, but this typically occurs during the fall after the blooming period. Strong wind can cause this plant to blow over in exposed situations.

Heliopsis helianthoides 'Asahi' (False Sunflower), Amorpha canescens

Spread: Up to 1 meter

Water: Average water requirement. But, Keep soil moist throughout growth and bloom season.

Best Soil: Clay to Sandy Loam And Soil PH:Neutral to Slightly Acidic

Growth Habit: Upright Clump, Slowly Spreading

More Information

Indigenous peoples used to treat burns with a poultice made from the flowers.