• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Rudbeckia hirta 'Cherry Brandy'

black-eyed Susan 'Cherry Brandy'

  • Other common names black-eyed Susan 'Cherry Brandy'

  • Synonyms Rudbeckia hirta 'Cherry'

  • Family Asteraceae

  • Genus Rudbeckia may be annuals, biennials or rhizomatous herbaceous perennials, with simple or pinnately divided leaves and large daisy-like flower-heads with yellow or orange rays surrounding a prominent conical disk

  • Details 'Cherry Brandy' is an erect biennial with bristly stems and leaves and classic daisy-shaped flowerheads, to 60cm tall, from June through to autumn, in warm red shades

Characteristics

  • Foliage Deciduous

  • Habit Columnar/Upright

  • Hardiness

    Hardiness ratings

    All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

    • H1a - Under glass all year (>15C)
    • H1b - Can be grown outside in the summer (10 - 15)
    • H1c - Can be grown outside in the summer (5 - 10)
    • H2 - Tolerant of low temperatures, but not surviving being frozen (1 to 5)
    • H3 - Hardy in coastal and relatively mild parts of the UK (-5 to 1)
    • H4 - Hardy through most of the UK (-10 to -5)
    • H5 - Hardy in most places throughout the UK even in severe winters (-15 to -10)
    • H6 - Hardy in all of UK and northern Europe (-20 to -15)
    • H7 - Hardy in the severest European continental climates (< -20)

    H3

Colour

Sunlight

  • Full Sun

  • Aspect West-facing or South-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Clay

    Clay

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilClay, Loam

  • pHNeutral, Acid, Alkaline

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 1-2 years

How to grow

Cultivation Best grown as half-hardy annuals. Easily raised from seed, plant out in late spring after danger of frost has passed. Will not normally survive the winter's cold and wet

Propagation Propagate by seed sown with gentle heat in Spring

Suggested planting locations and garden types Cut Flowers Flower borders and beds Cottage & Informal Garden Patio & Container Plants Wildlife Gardens

How to care

Pruning Deadhead spent flowers

Pests Generally trouble-free

Diseases May suffer from grey moulds if air circulation is poor during propagation or in the border

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.