Please make sure JavaScript is enabled.
 
Common Black-Eyed Susan in the GardenTags plant encyclopedia

Rudbeckia hirta 'Sonora'

 

Common Black-Eyed Susan

Rudbeckias, or Coneflowers, are herbaceous, and mostly perennial plants (some annual or biennial). They are easy to grow, and have colourful daisy-like flowers (usually in shades of yellow, orange or red) with petals that droop downwards from the prominent central cone-shaped dark centre.The leaves grow in a spiral arrangement up the stem. 'Sonora' is a compact plant with bright yellow daisy-like flowers with a deep red-brown centre

Contributed by @JulieMKeefer

 
plant Features
  • Common Black-Eyed Susan likes full sun

    Full sun

  • Common Black-Eyed Susan likes occasional watering

    Occasional watering

  • Common Black-Eyed Susan is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Common Black-Eyed Susan likes moist and free draining

    Moist and free draining

 
plant information

Common name

Common Black-Eyed Susan

Latin name

Rudbeckia hirta 'Sonora'

type

Herbaceous Perennials

family

Asteraceae

ph

5.0 - 8.0 Acid - Neutral

  • Light

    Common Black-Eyed Susan likes full sun

    Full sun

  • Frost

    Common Black-Eyed Susan is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Soil

    Common Black-Eyed Susan likes moist and free draining

    Moist and free draining

  • Water

    Common Black-Eyed Susan likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Common Black-Eyed Susan is 0.40meters x 0.50meters 0.40 M 0.50 M

Rudbeckia hirta 'Sonora'

Rudbeckias, or Coneflowers, are herbaceous, and mostly perennial plants (some annual or biennial). They are easy to grow, and have colourful daisy-like flowers (usually in shades of yellow, orange or red) with petals that droop downwards from the prominent central cone-shaped dark centre.The leaves grow in a spiral arrangement up the stem. 'Sonora' is a compact plant with bright yellow daisy-like flowers with a deep red-brown centre


Flowering Season

From Mid Summer TO Mid Autumn

The flowers start to bloom in mid-summer and will continue through to autumn with regular dead heading. Cut R. hirta species back hard after first flowering and apply a liquid feed to promote a second flush.

 

Planting

From Late Autumn TO Mid Spring

Rudbeckia will grow in any well cultivated and well drained garden soil in an open and sunny site. All perennial species and taller annual species require staking in exposed positions. Plant perennial varieties in late autumn or spring. On dry soils, mulch with peat or decayed manure early in spring unless height restriction of taller varieties is wanted.

 

Propagation by seed

From Early Spring TO Mid Spring

Sow seed for annual species in pots during early to mid-spring or in late summer and place in a cold frame. Overwinter in a frame and plant out in flowering site in early summer.

 
Subscribe to GardenTags Premium to get personalised planting tasks and more for your entire plant collection
 
Gardeners who are growing this plant
>