Rudbeckia triloba 'Blackjack Gold'

Plants for pollinators
Annual Biennial Herbaceous Perennial

A bushy biennial or short-lived perennial to 1m tall, with dark red stems and roughly hairy leaves. From late summer into early autumn it bears a profusion of flowerheads to 5cm across, composed of golden yellow ray florets around a raised, black cones. This cultivar shows good disease-resistance, and its pollinator-friendly flowers are good for cutting

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
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
Name Status
Unresolved

How to Grow

Cultivation

Grow in moderately fertile soil that does not dry out. Will tolerate light shade but flowering is best in full sun. See rudbeckia cultivation

Propagation

Propagate by seed or division

Suggested planting locations and garden types

  • Cottage and informal garden
  • Prairie planting
  • Wildlife gardens
  • Low Maintenance
  • Cut flowers
  • Flower borders and beds

Pruning

Cut old stems back to ground level in early spring

Pests

May be susceptible to aphids

Diseases

Generally disease-free