Sanguisorba

Trial Report

2018–2021

RHS Registered Charity No: 222879/SC038262

The Award of Garden Merit

The Royal Horticultural Society (RHS) trials a wide range of ornamental and edible garden plants to test

their performance. The best may receive a prestigious RHS Award of Garden Merit (AGM). Plant trials

provide the opportunity for multiple selections of the same plant to be grown side by side for the purpose

of comparison.

The AGM is intended to help gardeners select plants that have good all-round garden value, and is only

awarded to plants that are:

• Excellent for ordinary use in appropriate conditions

• Available

• Of good constitution

• Essentially stable in form and colour

• Reasonably resistant to pests and diseases

The plants may be grown from seed and/or vegetative material as appropriate, and are submitted by

nurseries, individuals and breeders. Visitors to RHS Garden Wisley can view ongoing plant trials in the Trials

Garden. Trials can also be seen in the dedicated beds in The Old Frameyard at RHS Garden Bridgewater.

Individual trials are sometimes held at the other RHS Gardens as well as other gardens and nurseries across

the UK.

Plants of all kinds, including fruit and vegetables, may be considered for the AGM. Currently, more than

7,500 plants have an AGM, with new awards made each year. Awards are made following assessment by a

forum of experts, including nursery owners, specialist growers and horticulturists, all appointed by the RHS.

The trial results are used to inform the forums’ decision to award plants the AGM status. Each assessment is

then ratified by the relevant RHS Plant Committee.

RHS awards can also be given by Roundtable assessment. An award is given when a forum of horticultural

experts meets to debate the characteristics and garden performance of plants that the RHS is unable to trial

in one of the RHS Gardens or another location.

To ensure consistent standards are maintained, the AGM is subject to regular review to make sure that every

plant still merits its place on the list. Since 2013, reviews have been conducted by each RHS Plant Committee

on a rolling basis.

RHS Horticultural Database and Herbarium

RHS Plant Trials provide an important record for RHS research into cultivated plants and their names, and

data is stored on the RHS Horticultural Database.

Trials are also an important source of material for the Herbarium at Wisley. Its primary focus is to acquire

and maintain reference material of plants in cultivation.

Buying plants with the AGM

It is easy to find and buy AGM plants:

• Search using the RHS ‘Find a Plant’ feature on rhs.org.uk/plants, using the

AGM Plant Search

• Download a list at rhs.org.uk/agmlists

• Check the latest edition of the RHS Plant Finder book

• Look out for the AGM logo the next time you are in a garden centre or nursery

All images © RHS / Nicola Stocken, unless otherwise indicated

Sanguisorba Trial 2018–2021 1

Introduction to Sanguisorba

Sanguisorba, or burnet, are herbaceous perennials with attractive, pinnate leaves and branched wiry stems

bearing terminal spikes of catkin-like flowers with red, pink or white sepals and prominent stamens. Some

have small bobby flower heads. Sanguisorba is part of the Rosaceae family along with relatives including

Rosa, Rubus (brambles), Fragaria (strawberry) and Potentilla (cinquefoil). Sanguisorba refers to ‘absorbing

blood’ and the plant S. officinalis (great burnet) was traditionally cultivated as a medicinal plant to help

staunch bleeding. Sanguisorba is a genus of about 18 species which are native to the Northern Hemisphere

occurring across temperate regions of Europe, northern Asia, and northern North America. Burnets may use

three different types of pollination method: many are pollinated by insects such as bees and butterflies, but

some are wind pollinated, whilst many are also self-fertile.

Trial location

The Trial site was located on the Portsmouth Field at RHS Garden Wisley: south-facing and gently sloping.

Objectives

The objectives of the trial were to assess a range of cultivars and to recommend the Award of Garden Merit

(AGM) to outstanding cultivars for garden use. This genus has become increasingly popular with the move

towards more naturalistic planting. Strong vertical plants, attractive foliage and a multitude of colourful

flowerheads combine well with most grasses. They are hardy and have a flowering range that covers April

through to November. There has been a proliferation of named cultivars that warranted AGM assessment as

a useful guide to the gardener.

Judging

The Sanguisorba trial forum assessed the trial regularly through 2018, 2019 and 2021. No assessments took

place during 2020 due to the impact of the Covid-19 pandemic. Members of the forum were:

M Christopher (Chair), P Barney, B Ellis, M Enache, C Moat, B Pope, P Seaborne, L Pink, S Walters and R

Yeomans. The forum assessed the plants using the following judging criteria:

• Overall impact

• Habit and need for support

• Quality of flower and foliage

• Length of flowering period

• Resistance to pest and disease, and weather tolerance

S. ‘Raspberry Coulis’ © RHS / Tim Sandall

2 Sanguisorba Trial 2018–2021

S. ‘Ivory Towers’

Entries

There were 120 entries in the trial submitted by various nurseries and individuals in the UK.

Cultivation

The trial bed was rotavated and prepared during September 2017. A fertiliser (Kieserite at 20g/sqm, and

Sulphate of Potash at 75g/sqm) was applied to the bed prior to planting. All of the trial entries were supplied

as young plants. Three plants of each entry were planted, watered in and mulched during September and

October 2017. During April 2018 additional fertiliser was applied (Sulphate of Ammonia at 30g/sqm and

Kieserite at 10g/sqm) after which no further fertiliser was used during the duration of the trial. The plants

were sprayed weekly during May 2018 with Signum and Garshield to help protect the young plants from

mildew.

Hazel stakes were used to support the mid plant of each entry. The remaining two plants of each entry

were left unsupported. During autumn 2018 and subsequent years, the plants were cut down to the base

for winter. The beds were hoed each autumn to remove any weeds and seedlings. Each spring the hazel

supports were renewed.

Pests and diseases

We found that the Sanguisorba were generally resistant to pest and disease. Few cultivars developed any

significant mildew.

Sanguisorba Trial 2018–2021 3

AGM Sanguisorba

The following are the plants that fulfilled the Award of Garden Merit criteria during the trial.

Descriptions have been largely based on RHS Find a Plant, where available (rhs.org.uk/plants)

RHS hardiness ratings

To help gardeners determine which plants may be hardy in their locality the RHS hardiness rating scheme

outlined below has been devised as a general guide to growing conditions. Temperatures given are minimum

winter temperatures.

Hardiness ratings are as follows:

H1a tropical: heated greenhouse (warmer than 15°C)

H1b subtropical: heated greenhouse (10°C to 15°C)

H1c warm temperate: heated greenhouse (5°C to 10°C)

H2 tender: cool or frost-free greenhouse (1°C to 5°C)

H3 half hardy: unheated greenhouse or mild winter (-5°C to 1°C)

H4 hardy: average winter (-10°C to -5°C)

H5 hardy: cold winter (-15°C to -10°C)

H6 hardy: very cold winter (-20°C to -15°C)

H7 very hardy (colder than -20°C)

Rescinded, reconfirmed and retained

When an existing AGM plant is included in an RHS Plant Trial or Roundtable, it is assessed and voted on like

any other plant, to make sure it still merits its place on the AGM list.

If the decision is that it is no longer worthy of the AGM, the award is rescinded and the plant is removed from

the AGM list. Rescinded plants may no longer be displayed or sold with the AGM trophy symbol on the label.

If the decision is that it is still AGM-worthy the award is reconfirmed. A plant may be reconfirmed multiple

times, for instance after separate trials a few years apart. The official award date is still the original date,

however. So if the award was made in 2005 and reconfirmed in 2010 and 2014, the award date remains

as 2005.

On some rare occasions there may be insufficient votes either to rescind or to reconfirm the award.

This may happen if the outcome of the trial is inconclusive for example. In such cases, the award is retained.

This means its status is exactly the same as before the assessment and is not a reflection on the quality of

the plant.

4 Sanguisorba Trial 2018–2021

Sanguisorba

‘All Time High’

AGM (H7) 2021

Description: To

around 180cm in

height, with dark

green leaves and

spikes of pendent,

milky-white flowers

which appear summer to autumn.

Forum comments: Upright, graceful, airy

habit. Consistent form. Light, slender fresh

foliage. Clean foliage and flower. Flowers and

buds are held well above the foliage. Stands

well. Light stems. Delicate white flowers.

Spent flowers do not detract. Good autumn

colour.

Sanguisorba

‘Beetlewings’

AGM (H7) 2021

Description:

Vigorous, with dark

green, toothed

leaves. Upright long,

slim spikes of dark

crimson to maroon

red bottlebrush flowers which appear from

mid-summer to autumn.

Forum comments: Neat, tidy, compact

habit. Floriferous. Small bright red burrs in

full flower through July into August. Small,

neat foliage. Height to about 1.2m. Selfsupporting. Holding good colour into early

September.

Sanguisorba Trial 2018–2021 5

Sanguisorba

‘Burr Blanc’

AGM (H7) 2021

Description: Dark green

leaves and upright long, slim

spikes of white bottlebrush

flowers, opening from green

buds, which appear from

summer through until the

autumn.

Forum comments: Upright, open habit.

Attractive lime green foliage and stems. Delicate

feathery foliage tinged gold. Clean white catkins,

green in bud. Flowers held well above the

foliage. White catkins fade nicely. Floriferous

through July. Self-supporting. Holding good

presence into early autumn. Height to about

1.5m.

Sanguisorba

‘Cangshan

Cranberry’

AGM (H7) 2021

Description: Tall, to about

2m in height. The leaves have

oval leaflets with jagged edges

and the dark, purplish-red,

drumstick flowers are carried

on thin, wiry, ‘see-through’

stems from late summer into autumn. Dead stems

can remain a feature in winter.

Forum comments: Upright, tall sturdy habit.

Good apple green foliage. Attractive red markings

on petioles. Late season flowering through August

into September. Good for late season interest and

early autumn colour.

6 Sanguisorba Trial 2018–2021

Sanguisorba

‘Chinese Winter’

AGM (H7) 2021

Description:

Attractive pinnate

leaves and branched

stems bearing

terminal spikes of small white flowers with

conspicuous stamens.

Forum comments: Early season, floriferous.

Clean white flowers, held well above the

foliage. Spent flowers are greenish, pleasant.

Compact. Height to about 1m. Does not

require staking. Good short white. Ideal for

smaller garden.

S. hakusanensis

‘Chirisan

Chignon’

AGM (H7) 2021

Description: Floriferous,

arching stems, sparse in

centre of plant, feathery

flowers. Height to about

1.1m. Younger flowers

with stamen of deep

purplish red, with dark brown anthers.

As flowers age stamen fade to moderate

purplish pink.

Forum comments: Neat, compact,

consistent plants. Dark red stems. Good

foliage. Lovely purple-mauve fluffy catkin

- distinct colour. Mildly scented. In flower

during August. Relatively short flowering

season, but good for small gardens.

Sanguisorba Trial 2018–2021 7

Sanguisorba

‘Ivory Towers’

AGM (H7) 2021

Description: Upright,

to about 1.2m. The

foliage has long,

narrow leaflets with

a saw-tooth edge,

and the fluffy, white,

squirrel-tail flowers are produced for most of

the summer.

Forum comments: Upright, dense habit.

Stands well. Attractive clean foliage. Red

blush to stem. Long clean white catkins.

Green in bud. Flowers held well above

the foliage. Self-supporting. Early season

flowering in July. Floriferous. Good presence,

and still attractive once over.

Sanguisorba

‘Little Angel’

AGM (H7) 2021

Description:

Compact, with

pinnate leaves that

have irregular sawtoothed margins.

Foliage is blue-green

(glaucus) with white variegation surrounding

the edge. It spreads slowly in a low-growing

mat with drumstick-like burgundy flowers

held above the leaves.

Forum comments: Very neat, compact,

uniform clumps. Good variegation with no

reversion. Ideal for small garden, container

or front of border. Small red burrs held well

above the foliage. Floriferous. In full flower

through July. Height to about 40cm.

8 Sanguisorba Trial 2018–2021

Sanguisorba

‘Maartjes Merlot’

AGM (H7) 2021

Description: Upright,

with dark green leaves

and slim spikes of

dark wine-red flowers

which appear from

summer through to autumn.

Forum comments: Red burrs held well

above foliage. Floriferous. In full flower

through July. Height to about 1.2m. Good

for front of border, and ideal for small

garden.

Sanguisorba

‘Misbourne Pink’

AGM (H7)

2021, Subject to

Availability

Description:

Attractive pinnate

leaves and branched

stems bearing

terminal spikes of pendant pink flowers with

conspicuous stamens.

Forum comments: Clean glossy foliage.

Light pink catkin. Floriferous. In full flower

through August. Abundant elegant blooms.

Spent flowers do not detract. Upright, largely

self-supporting. May need light support. Airy,

lax habit, but standing up well in heavy rain.

Height to about 1.5m.

Sanguisorba Trial 2018–2021 9

Sanguisorba

‘Nassachtal’

AGM (H7)

2021, Subject to

Availability

Description:

Compact, upright,

with dark green leaves

and slim spikes of pink and white flowers

which appear from summer through to

autumn .

Forum comments: Upright, tall, selfsupporting habit. Fine dark green foliage with

serrated leaf margins. In full flower during

July into August. Floriferous. Well elevated

two-tone catkins of bright pink-white. Height

to about 1.2m.

Sanguisorba

‘Miss Elly’

AGM (H7) 2021

Description: Dark green

leaves and spikes of red

flowers from summer to

autumn.

Forum comments: Dark

stems and foliage, with good sheen. Small,

vibrant dark red burr. Floriferous. Long

flowering season. In full flower through

August into September Height to about

1.2m.

10 Sanguisorba Trial 2018–2021

Sanguisorba

officinalis ‘Lum’

AGM (H7) 2021

Description:

Attractive pinnate

leaves and branched

stems bearing

terminal spikes of

small red flowers with

conspicuous stamens.

Forum comments: Very early flowering.

Neat upright habit. Floriferous, many small

red burrs flowers held well above the foliage.

Clean. Useful colour early in the season. High

ratio of flower to foliage. Good early season

cultivar. Best to cut back after flowering.

Height to about 1.2m.

S. officinalis ‘Lum’ © Sarastro Nursery, Christian Kress.

Sanguisorba

‘Pink September’

AGM (H7) 2021

Description:

Attractive pinnate

leaves and branched

stems bearing

terminal spikes of

fluffy pendant flowers

with conspicuous stamens.

Forum comments: Upright, airy habit.

Attractive pink and white catkins. Selfsupporting. Floriferous. Flowers fade well.

Uncongested, quite open. Tall, sturdy plants.

Height to about 2m. Strong, red stems.

Clean glossy foliage. Masses of flower.

Sanguisorba Trial 2018–2021 11

Sanguisorba

‘Raspberry Coulis’

AGM (H7) 2021

Description: Maroon

flowers resembling

upright catkins are

produced on branched,

wiry stems over a long

period in summer and

early autumn above a mound of foliage.

Forum comments: Compact, upright habit.

Floriferous, with good flower longevity. In full

flower through August into September. Clean,

long upright burr. Two-tone vivid dark pink,

white. Flowers fade well. Long season. Spent

flowers do not detract. Height to about 1.5m.

Benefits from support.

Sanguisorba

‘Rose Catepelose’

AGM (H7) 2021,

Subject to Availability

Description: Attractive

pinnate leaves and

branched stems bearing

terminal spikes of fluffy

pendant flowers with

conspicuous stamens.

Forum comments: Strong, upright open

habit. Large pendant, rose pink catkins mildly

scented. Good when dry, may look messy

after heavy rain. Broad leaves. Excellent fresh

apple-green foliage. Red tones to autumn

foliage. Lovely as foliage plant. Late season

flowering. Floriferous. Flowers held well

above foliage. Height to about 1.8m.

12 Sanguisorba Trial 2018–2021

Sanguisorba

‘Sussex Prairies

Apache’

AGM (H7) 2021

Description: Dense

bright green foliage

and upright long,

slim spikes of large,

dark pink bottlebrush

flowers which appear from summer through

until the autumn.

Forum comments: Catkins open almost

white, turning to deep purple with age.

Unique colour. Flowers also fade well.

Compact, dense bright green foliage. Late

season flower. Flowers held above the

foliage. Upright habit. Height to about 1.8m.

Sanguisorba

‘Sussex Prairies

Cheyenne’

AGM (H7) 2021

Description: Attractive

pinnate leaves and

branched stems

bearing terminal spikes

of fluffy pendant

white flowers with

conspicuous stamens.

Forum comments: Tall, upright, elegant

habit. Height to about 2m. Long flowering

season. Pendant white catkins. Clean flower

and foliage. Elegant, stands well.

Sanguisorba Trial 2018–2021 13

Sanguisorba

‘Sussex Prairies

Navaho’

AGM (H7) 2021

Description: Dense bright

green foliage and upright

long, slim spikes of large,

dark pink bottlebrush

flowers which appear from summer through

until the autumn.

Forum comments: Upright, strong stems.

In full flower during August. Bright red

burrs. Floriferous. Clean foliage. Stands well

without support. Height to about 1.8m.

Sanguisorba

‘Swan Song’

AGM (H7) 2021, Subject to

Availability

Description: Attractive

pinnate leaves and

branched stems bearing

terminal spikes of fluffy

white flowers with

conspicuous stamens.

Forum comments: Upright habit. Sturdy

dark reddish stems Clean, glossy foliage.

Floriferous. Late season. In full flower during

August into September. Thick, short white

catkins. Height to about 1.8m.

14 Sanguisorba Trial 2018–2021

Sanguisorba

tenuifolia

‘Stand Up

Comedian’

AGM (H7) 2021

Description: Red-brown stems and bright

green foliage composed of narrow leaflets

with saw-tooth edges. The white, hanging,

fluffy flowers appear from midsummer to

early autumn.

Forum comments: Graceful, upright, airy,

slightly arching habit. Clean white catkins.

Glaucous, glossy foliage with red rib and

attractive toothing. Tropical look to arching

foliage. Late season. Small white catkins

but very floriferous. Lovely cloud of white.

Height to about 2m.

Sanguisorba

tenuifolia

‘Sturdy Guard’

AGM (H7) 2021

Description: Attractive

pinnate leaves and

branched stems

bearing terminal spikes

of upright red flowers

with conspicuous

stamens.

Forum comments: Lovely apple green

foliage. Upright habit. Good presence for

late summer. Dark smoky buds and red

burrs. A lot of healthy foliage, and flowers

held well above. Height to about 1.8m.

Sanguisorba Trial 2018–2021 15

Sanguisorba

tenuifolia

‘White Tanna’

AGM (H7) 2021

Description: Rosettes of long, finely-pinnate,

finely-toothed, glossy green leaves and

branching stems with a profusion of neat,

hanging, bottlebrush-like white flowerheads

from late summer to autumn.

Forum comments: Neat, compact, upright

habit. Clean mid- green, fine foliage.

Floriferous. In full flower through August.

Clean, white catkins. Standing well. Height to

about 1.5m. Spent flowers do not detract.

Long season of interest.

Sanguisorba

‘The Invisible’

AGM (H7) 2021

Description:

Attractive pinnate

leaves and branched

stems bearing

terminal spikes of

pendant white flowers

with conspicuous stamens.

Forum comments: Airy, elegant, graceful

habit. Tall and upright growth. Balanced,

delicate, clean, glossy, toothed foliage. Slim

white catkins drip down gracefully. Stems are

pink at apex. Good presence. Soft graceful

form. Floriferous. Healthy. Height to about

2m. Self-supporting.

16 Sanguisorba Trial 2018–2021

Sanguisorba

DJHC 143

AGM (H7) 2021, Subject to

Naming and Availability

Description: Attractive pinnate leaves and

branched stems bearing terminal spikes of

upright, long red burrs.

Forum comments: Sturdy, upright, tidy,

open habit. High ratio of flower to foliage.

Glaucous, slender textured foliage. Long

rich dark red burrs Flowers held well

above the foliage. Spent flowers hold good

colour. Prolific mid-season flowering. Selfsupporting. Height to about 1.5m.

Sanguisorba

tenuifolia 187

AGM (H7) 2021, Subject to

Naming and Availability

Description: Attractive pinnate leaves

and branched stems bearing terminal

spikes of pendant fluffy white flowers with

conspicuous stamens.

Forum comments: Elegant, upright

airy, slightly open habit. Glossy, clean,

bright green foliage, still looking fresh in

September. Pink hue at stem tips. In full

flower through August. Self-supporting.

Height to about 1.8m.

Sanguisorba Trial 2018–2021 17

Sanguisorba

tenuifolia var.

alba (selection)

AGM (H7) 2021,

Subject to Naming and Availability

Description: Attractive pinnate leaves

and branched stems bearing terminal

spikes of pendant fluffy white flowers with

conspicuous stamens.

Forum comments: Airy, upright habit,

standing up well. Warm white catkins.

Floriferous, neat, attractive glossy foliage.

Mass of flower during July and August. Good

autumn colour. Height to about 1.8m.

The forum recommended to rescind the Society’s AGM from the

following entries:

Sanguisorba menziesii AGM 2014 (H7)

Forum comments: Poor performance during the trial. Prone to heavy mildew.

Sanguisorba ‘Tanna’ AGM 2014 (H7)

Forum comments: Habit and flower colour are unremarkable, and it has since been

superseded by similar but improved forms, such as ‘Red Buttons’, ‘Prim and Proper’, ‘Miss Elly’

and ‘Swarm’, all in the trial. None are identical in habit and colour to ‘Tanna’, but each shows

similar features with improvements.

18 Sanguisorba Trial 2018–2021

• S. officinalis ‘Lemon Splash’ (v)

• S. officinalis ‘Lum’

• S. officinalis ‘Martin’s Mulberry’

• S. officinalis ‘Morning Select’

• S. officinalis ‘Red Buttons’

• S. officinalis ‘Red Thunder’

• S. officinalis ‘Shiro-fukurin’

• S. officinalis ‘Tsetsegu Tsetseguun’ [ex

PAB874]

• S. officinalis ‘Tsetseguun’

• S. officinalis ‘White Tanna’

• S. ‘Pink Brushes’

• S. ‘Pink September’

• S. ‘Pink Tanna’

• S. ‘Purple Tails’

• S. ‘Raspberry Coulis’

• S. ‘Raspberry Mivvi’

• S. ‘Red Busby’

• S. ‘Rock and Roll’

• S. ‘Rose Catepelose’

• S. ‘Rosea’

• S. ‘Sangria’

• S. ‘Scapino’

• S. ‘Skinny Fingers’

• S. stipulata

• S. stipulata var. rishirensis

• S. ‘Sussex Prairies Apache’

• S. ‘Sussex Prairies Cheyenne’

• S. ‘Sussex Prairies Iroquois Alba’

• S. ‘Sussex Prairies Iroquois’

• S. ‘Sussex Prairies Navaho’

• S. ‘Tall Raspberry’

• S. ‘Tall Tanna’

• S. ‘Tanna’

• S. tenuifolia from Ernst Pagels

• S. tenuifolia No. 50

• S. tenuifolia 187

• S. tenuifolia var. alba (selection)

• S. tenuifolia var. alba ‘Korean Snow’

• S. tenuifolia ‘Atropurpurea’

• S. tenuifolia ‘Big Pink’

• S. tenuifolia ‘Bordeaux’

• S. tenuifolia ‘Henk Gerritsen’

• S. tenuifolia var. parviflora

• S. tenuifolia var. parviflora ‘Burr Blanc’

• S. tenuifolia ‘Pieters’

• S. tenuifolia ‘Pink Elephant’

• S. tenuifolia ‘Pink Tickler’

• S. tenuifolia ‘Purpurea’

• S. tenuifolia ‘Stand Up Comedian’

List of plants trialled

• Sanguisorba from Japan

• S. albiflora

• S. albiflora ‘Cindy’s Tall White’

• S. ‘All Time High’

• S. applanata

• S. armena

• S. ‘Autumn Bliss’

• S. ‘Autumn Red’

• S. ‘Beetlewings’

• S. ‘Bere Rose’

• S. ‘Blacksmith’s Burgundy’

• S. ‘Blackthorn’

• S. canadensis

• S. canadensis ‘Twisty’

• S. ‘Candy Floss’

• S. ‘Cangshan Cranberry’

• S. ‘Ccc’

• S. ‘Chatto’

• S. ‘Chocolate Tip’

• S. DJHC 143

• S. dodecandra

• S. ‘Foxtail’

• S. hakusanensis

• S. hakusanensis ‘Chirisan Chignon’

[B&SWJ8709]

• S. hakusanensis ‘Lilac Squirrel’

• S. ‘Hendrickx’

• S. ‘Ivory Towers’

• S. ‘John Coke’

• S. ‘Joni’

• S. ‘Little Angel’

• S. magnifica

• S. menziesii

• S. menziesii ‘Wake Up’

• S. menziesii ‘Dali Marble’

• S. menziesii ‘Fathom’s Deep’

• S. ‘Misbourne Menzi’

• S. ‘Misbourne Pink’

• S. ‘Miss Elly’

• S. ‘Nassachtal’

• S. ‘Nettlesworth Wand’

• S. obtusa

• S. obtusa white-flowered

• S. officinalis CDC 262

• S. officinalis CDC 282

• S. officinalis CDC 292

• S. officinalis dark flowered

• S. officinalis early-flowering

• S. officinalis ‘Arnhem’

• S. officinalis ‘Crimson Queen’

Sanguisorba Trial 2018–2021 19

• S. tenuifolia ‘Strawberry Frost’

• S. tenuifolia ‘Sturdy Guard’

• S. tenuifolia ‘The Invisible’

• S. tenuifolia ‘White Elephant’

• S. ‘Thistleton Gem’

• S. ‘White Tails’

• S. ‘Zwarte Bolletjes’

Suppliers to the trial

Avondale Nursery – avondalenursery.co.uk

Dove Cottage Nursery – dovecottagenursery.co.uk

Edulis Nursery – edulis.co.uk

Larch Cottage Nursery – larchcottage.co.uk

MacPlants – macplants.co.uk

Marchants Hardy Plants – marchantshardyplants.co.uk

Phoenix Perennial Plants – Paice Ln, Medstead, Alton GU34 5ES. Tel. 01420 560695

Pineview Plants – pineviewplants.co.uk

Sussex Prairie Garden – sussexprairies.co.uk

The Plant Specialist – theplantspecialist.co.uk

Other plants sent by individuals – c/o the Trials Office

For more information

Details of current and past RHS Plant Trials and other colour illustrated reports can be found online at

rhs.org.uk/trials-awards

The Sanguisorba with an RHS Award of Garden Merit (AGM) listed within this report are correct as of 1 May

2023. The AGM is reviewed according to a rolling programme to ensure the standard of garden-worthiness is

maintained.

First published in 2023 by the Royal Horticultural Society:

Trials Office, RHS Garden Wisley, Woking, Surrey, GU23 6QB

Email: [email protected]

Prepared by Karen Robbirt

Trial No. 2082

RHS Registered Charity No: 222879/SC038262

rhs.org.uk

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