'Blackthorn' Great Burnet (Sanguisorba)
Perennial
- Pink bobbles flow on top of wiry stems.
- Keep spent blooms intact for deep burgundy fall and winter interest.
- Tall stems rise through green fern-like foliage.
- Zones 4-8, sun to part sun, 6.5' tall and wide at maturity.
ZONE
EXPOSURE
HEIGHT
Description
Pink candle-like flowers sit atop wiry stems, creating an airy haze of saturation and height in any landscape. They weave through other perennials, complementing existing plants nicely in the summer garden, and its mounds of fern-like foliage make this plant a border beauty. 'Blackthorn' provides long-lasting interest beginning in summer with nodding blooms and continuing through fall, long after its blooms have faded.
Details
Common name: Burnet
Zone: 4-8
Sun exposure: Sun (>6 hours sun), part sun (4-6 hours sun)
Height x width: 6.5’ X 6.5’
Flower color: Pink
Foliage color: Green
Season of Interest: Summer, fall
Bloom time: Midsummer-fall
Features: Winter interest, best for beginners, rare & unusual
Uses: Cottage garden, accent, naturalizing, border, prairie plantings, container gardening, cut flower, background, foundation planting, specimen
How to Grow
Light: Sun (>6 hours sun), Part-sun (4-6 hours sun)
Water: Average
Spacing: 6.5’ - 7’
Fertilizing: nNone required.
Winterizing: No specific care is needed.
Maintenance & pruning: Cut back in later winter or early spring before new buds appear.
Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
Not sure just how many plants will fit in your garden? Our calculator gives you the exact amount of plants required for your space. Simply update the values and the calculator will re-calculate accordingly. Spacing information can be found in the 'How to Grow' tab on each plant's page.