Alphabetical Plant Listing

Helianthus mollis (Ashy Sunflower)

Ashy Sunflower, Downy Sunflower


Helianthus mollis (Ashy Sunflower) is an upright perennial with pubescent leaves and stems (covered with hair) giving them an ash-like gray color, hence the common name. The stems are clad with sharply toothed, broad oval leaves, 6 in. long (15 cm), and are branched in their upper part. From early summer to early fall, they are topped with a profusion of yellow flowers, 4 in. across (10 cm), each adorn with up to 15-30 yellow rays and a yellow center disk. The blossoms are particularly attractive to birds as they love to eat the seeds directly from the seedheads. Ashy Sunflower spreads in the landscape by rhizomes and self-seeding to form colonies. It is perfect for adding long-lasting summer color in naturalized areas.

  • Typically grows up to 2-4 ft. tall (60-120 cm) and 1-3 ft. wide (30-90 cm).
  • Performs best in full sun in average, dry to medium, well-drained soils. However, this plant is not too fussy about soils and tolerates a wide range of conditions, excluding clay soils. Drought tolerant once established.
  • Low maintenance, this is an excellent choice for cottage gardens, bird or butterfly gardens, wildflower gardens, prairies and meadows.
  • Keep an eye out for rust, leaf fungal spots, powdery mildew, caterpillars and beetles.
  • Native to central and eastern North America.

Learn How To Plant, Care and Grow Gorgeous Sunflowers

Cherished for their beauty, Sunflowers (Helianthus) are striking ornamental annuals or perennial plants grown for their colorful summer and fall blooms. Fast-growing, they can reward you with glamorous blooms between 55 and 100 days after planting. Here are some basic rules that need to be followed to enjoy their splendid flowers.Read More

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Requirements

Hardiness 4 – 9
Plant Type Perennials
Plant Family Helianthus - Sunflowers
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 2' – 4' (60cm – 120cm)
Spread 1' – 3' (30cm – 90cm)
Spacing 36" (90cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Missouri, Nebraska, Ohio, Wisconsin, Northeast, Connecticut, Maine, Massachusetts, Maryland, New Jersey, New York, Pennsylvania, Rhode Island, Southeast, Alabama, Arkansas, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma, Texas
Tolerance Drought, Dry Soil, Rocky Soil
Attracts Birds, Butterflies
Garden Styles Informal and Cottage, Prairie and Meadow

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By JL Jahn / Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 9
Plant Type Perennials
Plant Family Helianthus - Sunflowers
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 2' – 4' (60cm – 120cm)
Spread 1' – 3' (30cm – 90cm)
Spacing 36" (90cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Missouri, Nebraska, Ohio, Wisconsin, Northeast, Connecticut, Maine, Massachusetts, Maryland, New Jersey, New York, Pennsylvania, Rhode Island, Southeast, Alabama, Arkansas, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma, Texas
Tolerance Drought, Dry Soil, Rocky Soil
Attracts Birds, Butterflies
Garden Styles Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Helianthus - Sunflowers

Guides with Helianthus - Sunflowers

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