Location specific values:
Array
(
    [lat] => 38.853100
    [lng] => -77.299700
    [elevation] => 111.3588
    [rainfall] => 1031.1308
    [cold_temperature] => -4.1
    [temperature] => 31.0372
    [user_eto] => 1076.4380808
)
Plant specific values:
Array
(
    [rain_min_irrigation] => 392
    [eto_corrected] => 1494
    [eto_adjusted_rain_min (rain_min_irrigation / eto_corrected)] => 0.26238286
)
Slender Sunflower (Helianthus gracilentus) | Easyscape Plant Profile

Slender Sunflower

(Helianthus gracilentus)

Slender Sunflower (Helianthus gracilentus)

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Estimated Native Range
Species Map Help

Climate Requirements for Fairfax, Virginia

This Plant Your Site Plant Suitability for Your Location
Precipitation 3" - 60" 41" Aquatic Aquatic
High Temp. 68°F - 108°F 88°F Your summer temperatures are normal for this plant. Excellent
Low Temp. 12°F - 47°F 25°F Your winter temperatures are normal for this plant Excellent
This plant may not grow well at your location - your precipitation is too high.

Summary

Helianthus gracilentus, commonly known as Slender Sunflower, is a perennial herb that is native to the coastal sage scrub and chaparral of central and southern California, as well as Baja California. It can reach up to 7 feet in height and is characterized by its lance-shaped, pointed leaves and stems covered with rough hairs. The Slender Sunflower produces a striking inflorescence with a central cluster of yellow to red-brown disc florets encircled by radiant golden ray florets, typically blooming from late summer to fall. The flowers are highly attractive to pollinators and are quite showy, making them a favorite among gardeners and wildlife enthusiasts.

The Slender Sunflower is valued for its drought tolerance and ability to thrive in the challenging conditions of its native chaparral habitat, which includes adaptation to periodic wildfires. It is often used in native plant gardens, restoration projects, and as a naturalizing species in xeriscapes due to its low water requirements and preference for well-drained soils. While it thrives in full sun, it can also tolerate light shade. Gardeners should be aware that in optimal conditions, it may self-seed and spread, which is a desirable trait for habitat restoration but may require management in smaller garden settings.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 2-4 feet
  • Width: 1-2 feet
  • Growth Rate: Moderate
  • Flower Color: Yellow
  • Flowering Season: Spring, Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun
  • Water: Medium
  • Drainage: Fast, Medium

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Groundcover, Low Maintenance

Natural Habitat

Native to the coastal sage scrub and chaparral of central and southern California, as well as Baja California

Other Names

Common Names: Gracile Sunflower

Scientific Names: Helianthus gracilentus

GBIF Accepted Name: Helianthus gracilentus