Rudbeckia fulgida sillivantii (Black-eyed Susan) 'Goldsturm'
A vibrant perennial that brings a burst of sunshine to the garden with its golden yellow, daisy like flowers surrounding dark brown central cones. Blooming from midsummer well into autumn, it provides long lasting colour when many other plants are fading. The sturdy stems and bushy clumps of deep green foliage make it excellent for borders, cottage gardens or naturalistic plantings. Highly attractive to pollinators, it thrives in full sun and adapts well to various soil conditions, though it prefers moist but well drained sites. A reliable performer that returns year after year with minimal care, perfect for adding cheerful late season interest to any garden.
Family of Trees: Asteraceae
Habit: Herbaceous Perennial
Growth Rate: 30 to 60 cm/year
Optimal Temperature: 15-25°C, hardy to -30°C
Harmful if Eaten?: Non-toxic
Flowers or Berries: Yellow/Orange Daisy-like Flowers
Hardiness: H5 (Hardy)
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)
| Spring | Summer | Autumn | Winter | |
|---|---|---|---|---|
| Leaves | ||||
| Flowers | ||||
| Berries |
Spring
Summer
Autumn
Winter
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