Rudbeckia triloba
brown-eyed Susan
R. triloba is a short-lived perennial that bears small daisy flowerheads on wiry stems. With dark conical centres and broad reflexed yellow petals, the display is long-lasting from late summer
Size
Ultimate height
0.5–1 metresTime to ultimate height
1–2 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Gold Yellow | Green | ||
| Autumn | Gold Yellow | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Asteraceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Columnar upright
- 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
Correct
- Plant range
- C&E USA
How to grow
Cultivation
Best in an informal setting
Propagation
Propagate by seed. May self-seed
Suggested planting locations and garden types
- Cottage and informal garden
- Prairie planting
- Wildlife gardens
Pruning
Cut back in late autumn
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
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