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Great Coneflower in the GardenTags plant encyclopedia

Rudbeckia Maxima

 

Great Coneflower

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. Rudbeckia maxima, the great coneflower, 'Maxima' or Great Coneflower, is a very tall variety with yellow flowers through Summer

Contributed by @garybecky

 
plant Features
  • Great Coneflower likes full sun

    Full sun

  • Great Coneflower likes occasional watering

    Occasional watering

  • Great Coneflower is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Great Coneflower likes moist and free draining

    Moist and free draining

 
plant information

Common name

Great Coneflower

Latin name

Rudbeckia Maxima

type

Herbaceous Perennials

family

Asteraceae

ph

5.0 - 8.0 Acid - Neutral

  • Light

    Great Coneflower likes full sun

    Full sun

  • Frost

    Great Coneflower is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Soil

    Great Coneflower likes moist and free draining

    Moist and free draining

  • Water

    Great Coneflower 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 Great Coneflower is 1.00meters x 1.20meters 1.00 M 1.20 M

Rudbeckia Maxima

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. Rudbeckia maxima, the great coneflower, 'Maxima' or Great Coneflower, is a very tall variety with yellow flowers through Summer


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.

 
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