Unpack bare roots or rhizomes on arrival and plant them within a week. Until then, keep them somewhere cool and ensure the roots remain slightly moist, never wet.
Out of season
Want some bright, cheery colour in the garden at the end of the growing season, when most other summer plants have gone over? If so, then you would be hard-pressed to find anything more vibrant and impactful than Rudbeckia 'Herbstsonne'. This tough, durable, hardy herbaceous perennial, produces branched stems that carry heads of citrus-yellow daisy flowers in late summer and into autumn. Each bloom has a greenish-yellow centre. With its tall, slender stems, when this plant is fully mature, Rudbeckia 'Herbstonne' can reach 200cm in height.
Rudbeckia 'Herbstsonne' is ideal for growing towards the back of a mixed herbaceous border, but it also works well in prairie-style planting schemes. Like all coneflowers, Rudbeckia laciniata 'Herbstsonne' does particularly well in a sheltered, sunny spot, on a moist but well-drained soil. In fact, it is so highly regarded that the Royal Horticultural Society (RHS) has awarded it the coveted Award of Garden Merit. Even better, after a few years you can increase your stock of this plant by dividing it, in spring or autumn. Lastly, it also makes an excellent cut flower.
Quantity
Plant profile
Plant calendar
Remove the packaging straight away, check the compost and water thoroughly if dry. Check the plant’s hardiness before placing it outdoors. Plant into a border or permanent container within a month, choosing the position recommended for the variety. Keep the top of the root ball level with the surrounding soil, firm gently and water well.
Soak the roots in water for three to six hours immediately before planting. Keep any crown, buds or emerging shoots above the water where possible.
Pot most bare roots into 15–20cm pots filled with peat-free multipurpose compost. Large or depth-sensitive roots, including peonies, are often best planted directly into borders.
Arrange the roots naturally without bending them. Cover the roots completely, positioning the crown and buds at the depth recommended for that particular perennial.
Keep pots in a sheltered outdoor position and water whenever the compost begins to dry. Grow on until roots hold the compost together when lifted from the pot.
Plant into a suitable border or permanent container once well rooted. Add a label and water regularly throughout the first growing season while the perennial establishes.
- Botanical name
- Rudbeckia laciniata 'Herbstsonne'
- Flower colour
- Yellow
- Established height
- 1.2-2m
- Established spread
- 30-50cm
- Growing skill
- Easy to grow
- Habit
-
Upright
Clump-forming - Hardiness
- Fully hardy
- Leaf colour
- Green
- Mouse resistant
- No
- Plant size
- 1
- Plant spacing
- 10 plants per m2
- Pollinator friendly
- Yes
- Position
-
Sheltered
Exposed - Rabbit resistant
- No
- RHS Award (AGM)
- Yes
- Scented
- No
- Soil acidity
- Any
- Soil moisture
- Free draining
- Soil type
-
Loam
Sandy
Clay
Multipurpose compost
Loam-based compost - Suitable for
-
Large containers
Borders
Gravel gardens
Wildlife gardens
Coastal gardens
Cottage gardens
Low maintenance gardens
Cut flower gardens - Sunlight
-
Full sun
Partial shade - Toxicity
- No report
- Years to establish
- 1-2 years
Good for cutting
Pollinator-friendly
Thrives in full sun
RHS Recommended
Perennial
Fully hardy
Packed peat-free
Low maintenance
Attracts wildlife
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Rudbeckia 'Herbstsonne' reviews
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