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
Sanguisorba
'Blackthorn'
burnet
Think pink and puffy for your prairie planting scheme or mixed border. Sanguisorba 'Blackthorn' will bring rosy colour, height, structure, movement and pollinators to your garden to help achieve a gorgeously informal late-summer wilderness. Solid poker-shaped flowerheads emerge a deep claret-red colour before bursting out the fluffy pink flowers which form a light-catching aura. This means you get two great looks all in one plant! The show is long-lasting, low-maintenance and incredibly beautiful.
Sanguisorba 'Blackthorn' is quite a tall plant and will be happiest in a border where is has room grow. Thriving in a sunny location with free-draining soil, once it’s settled in its quite tolerant to dry conditions and copes well with heat. This clump-forming perennial will need a bit of time to reach full size but each year it will grow back bushier, taller and more prolific. Try pairing this burnet with other sun-loving perennials like Rudbeckia, Echinacea or Salvia to create a balmy summer combination.
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
- Sanguisorba 'Blackthorn'
- Flower colour
- Claret red
- Established height
- 50-70cm
- Established spread
- 50-70cm
- Growing skill
- Easy to grow
- Habit
-
Upright
Clump-forming - Hardiness
- Fully hardy
- Leaf colour
- Green
- Mouse resistant
- No
- Plant size
- 1
- Plant spacing
- 9 plants per m2
- Pollinator friendly
- Yes
- Position
-
Sheltered
Exposed - Rabbit resistant
- No
- Scented
- No
- Soil acidity
- Any
- Soil moisture
- Free draining
- Soil type
-
Loam
Loam-based compost
Multipurpose compost - Suitable for
-
Large containers
Borders
Gravel gardens
Wildlife gardens
Cottage gardens
Low maintenance gardens - Sunlight
-
Full sun
Partial shade - Toxicity
- No report
- Years to establish
- 1-2 years
Pollinator-friendly
Thrives in full sun
Perennial
Fully hardy
Packed peat-free
Low maintenance
Attracts wildlife
-20%
Paeonia 'Lemon Chiffon'
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Allium azureum
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