False sunflower - Heliopsis helianthoides (Care, Characteristics, Flower, Images)

False sunflower

Also known as: Rough oxeye, Heliopsis sunflower

False sunflower (Heliopsis helianthoides) differs from true sunflowers because not only can its disk florets produce seeds, but also its ray florets. With true sunflowers, only the disk florets are seed-producing. You'll find this pretty wildflower throughout much of the North American continent. They look gorgeous in a cut flower arrangement.

Scientific classification

Species

False sunflower (Heliopsis helianthoides)

Asters bellflowers fanflowers and allies

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Perennial, Annual

Lifespan

Herb

Plant Type

Mid summer, Late summer, Early fall, Mid fall

Bloom Time

Late summer

Harvest Time

40 cm to 1.5 m

Plant Height

60 cm to 90 cm

Spread

Green

Leaf Color

4 cm to 6 cm

Flower Size

Brown

Fruit Color

Yellow, Orange, Gold

Flower Color

Green, Red

Stem Color

Winter dormancy

Dormancy

Deciduous

Leaf type

20 - 35 ℃

Ideal Temperature

Moderate

Growth Rate

Images of False sunflower

Attributes of False sunflower

Growth Rate

Throughout the active growing seasons of Spring and Summer, false sunflower exhibits a moderate growth speed. This rate noticeably influences the plant's overall development, with steady increases in height and leaf production. During these warmer months, the balanced growth pace leads to striking, vibrant blossoms, while simultaneously maintaining a healthy, robust plant structure. As summer transitions into cooler seasons, false sunflower's growth noticeably slows, reflecting its inherent growth rhythm.

Distribution of False sunflower

Distribution Map

False sunflower is native to the eastern and central parts of North America. It has become naturalized in Colombia, most of Europe and Korea. Its native biome is dry, open woodlands, pastures, and prairies.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Open woods, woodland borders, clearings, thickets, grassy meadows, savannas, limestone glades, tallgrass prairies, blackland prairies, stream banks, disturbed roadsides, railroad rights of way

Hemisphere Trend Curve

Northern

Sorthern

Culture

Garden Use

The golden blossoms of false sunflower attract butterflies and bees throughout the summer, making them a favorite in many backyard gardens. They work well in borders or naturalized plantings, and are sometimes grown for cuttings. The false sunflower is well-suited as a “filler” in container plantings; match with tall “thriller” plants like Gayfeather and softly cascading “spiller” plants to balance the arrangement.

Symbolism

Fertility, Wishes, Health

Interesting Facts

False sunflower, or Heliopsis helianthoides, is a perennial flower often grown for its pretty yellow flowers and easy-going needs. These impressive flowers can grow anywhere from 91 to 244 cm tall. They are drought tolerant and work well in cut flower arrangements. These flowers are also resistant to deer and rabbits.

Name Story

False sunflower: The genus name comes from the Greek word helios meaning the sun and opsis which refers to the resemblance to the rayed yellow flower heads. However, it is not the true sunflower. Therefore, it is called a false sunflower.

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Cultivars

There are several recognized cultivars of False sunflower, including the following common varieties :

False sunflower 'Goldgefieder'False sunflower 'Asahi'

Quickly Identify False sunflower

Bright yellow daisy-like blossoms with a central cone, 2-3 inches (5-7.6 cm) wide.

Sturdy stems reaching 3-5 feet (0.9-1.5 meters) in height, often with multiple branches.

Leaves are ovate to lanceolate, 3-6 inches (7.6-15.2 cm) long, with toothed edges.

Upper leaf surface is rough in texture, thriving in full sunlight.

Flowers have yellow-orange petal rays around a brownish-yellow central cone, spanning 2-3 inches (5-7.5 cm) wide.

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Care Guide for False sunflower

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: False sunflower thrives in prairie habitats, balancing drought resilience with a preference for consistent moisture. It requires weekly watering for optimal health and is typically grown outdoors in full sun to enhance flowering potential.

Fertilize: Fertilize false sunflower every 4-6 weeks with a balanced 10-10-10 mix during active growth in spring and summer. Adjust frequency in fall and cease in winter. Use slow-release fertilizers or compost, and always water after fertilizing to enhance nutrient absorption and prevent root burn.

Pruning: False sunflower thrives with spring pruning from early to late spring. Remove dead stems and thin congested areas for better air circulation. Regularly cut back by one-third to control height and promote bushier growth, enhancing flowering and overall vigor.

Propagation: The ideal propagation season for false sunflower is Spring through sowing, with moderate ease in achieving successful emerging seedlings. A special tip is to maintain consistently moist soil during the germination process.

Repotting: For false sunflower, repot every 2-3 years in a larger container with well-draining soil. Provide bright light and consistent watering, avoiding overwatering. These strategies support recovery and encourage vibrant blooms.

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Images of False sunflower

Attributes of False sunflower

Distribution of False sunflower

Culture

Cultivars

Quickly Identify False sunflower

Care Guide for False sunflower

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