20% off
20% off
Sanguisorba 'Blackthorn'
burnet
Slender stems topped with soft bottlebrush blooms bring a light, airy feel to borders just when many summer plants begin...
9cm pot
sold out
3 × 9cm pots
sold out
1
Delivery options
Plant description
Slender stems topped with soft bottlebrush blooms bring a light, airy feel to borders just when many summer plants begin to fade.
Sanguisorba ‘Blackthorn’ forms neat clumps of divided green foliage with gently toothed leaflets that create a tidy base in mixed planting. From late summer into mid-autumn, tall wiry stems rise above the leaves carrying small, cylindrical flowers in warm rose-pink tones. The blooms sway freely in the breeze, adding movement and a naturalistic touch that works beautifully in prairie-style planting, wildlife borders and relaxed cottage gardens.
This rhizomatous herbaceous perennial is easy to place in sunny or lightly shaded spots where the soil holds a little moisture but drains well. Pollinators happily visit the nectar-rich flowers, and the upright stems weave nicely through ornamental grasses and other late-season perennials.
Sanguisorba ‘Blackthorn’ forms neat clumps of divided green foliage with gently toothed leaflets that create a tidy base in mixed planting. From late summer into mid-autumn, tall wiry stems rise above the leaves carrying small, cylindrical flowers in warm rose-pink tones. The blooms sway freely in the breeze, adding movement and a naturalistic touch that works beautifully in prairie-style planting, wildlife borders and relaxed cottage gardens.
This rhizomatous herbaceous perennial is easy to place in sunny or lightly shaded spots where the soil holds a little moisture but drains well. Pollinators happily visit the nectar-rich flowers, and the upright stems weave nicely through ornamental grasses and other late-season perennials.
Eventual height & spread
Flowering period
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Plant features
Position
Full sun / light shade
Rate of growth
Average
Soil
Moderately fertile, moist, well-drained soil
Hardiness
Fully hardy
How to care for Sanguisorba Blackthorn:
Plant 30-45cm (12-18in) apart in moderately fertile, moist, but well-drained soil, incorporating compost to improve drainage and fertility. Water regularly during the first season to establish deep roots, then reduce watering as it becomes drought-tolerant.
Apply an organic mulch of well-rotted compost to retain moisture and suppress weeds. In late winter or early spring, cut back the previous year's growth to 5-7cm (2-3in) above ground, dividing clumps every 3-4 years to maintain vigour. While rarely needed because of its compact stature, staking may be beneficial in very exposed sites.
Apply an organic mulch of well-rotted compost to retain moisture and suppress weeds. In late winter or early spring, cut back the previous year's growth to 5-7cm (2-3in) above ground, dividing clumps every 3-4 years to maintain vigour. While rarely needed because of its compact stature, staking may be beneficial in very exposed sites.
Please note:
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
