Filipendula hexapetala is a perennial herb in the rose family (Rosaceae) notable for its finely divided, fern-like basal leaves and loose clusters of small, creamy-white flowers. It produces sparsely leaved stems that rise above a basal rosette and reaches its mature height after a few seasons. The plant takes its English name from small tubers that hang from the roots.

Dropwort (Filipendula hexapetala) is a perennial with fern-like basal leaves and creamy flower clusters in June to August.

https://en.wikipedia.org/wiki/Filipendula_vulgaris

Filipendula is a genus of 12 species of perennial herbaceous flowering plants in the family Rosaceae, native to the temperate regions of the Northern Hemisphere. Well-known species include meadowsweet and dropwort, both native to Europe, and queen-of-the-forest and queen-of-the-prairie, native to North America.

Filipendula hexapetala

Dropwort (Filipendula hexapetala) | Cream blooms

Filipendula palmata 'Rosea' is a perennial grown for its summer flowering habit and mild fragrance. It flowers from June to August and suits moist, well-drained soils with an acidic to neutral pH. Plants perform in full sun to partial shade and are rated H5 (hardy) for UK conditions. Use it where summer cut flowers are wanted or in damp garden borders.

Siberian meadowsweet 'Rosea' (Filipendula palmata 'Rosea') is a perennial that flowers June to August and prefers moist, acidic to neutral soils.

https://en.wikipedia.org/wiki/Filipendula_palmata

Filipendula palmata 'Rosea'

Siberian meadowsweet 'Rosea' (Filipendula palmata 'Rosea')

Filipendula rubra is a perennial that reaches about 2.5 m and produces mildly fragrant flower heads in summer. It flowers from June to August and prefers a sunny position with reliably moist soil. Plant in sandy, loamy or clay soils that are moist to wet but reasonably well drained.

Queen of the Prairie (Filipendula rubra) blooms June to August and is a tall, mildly fragrant perennial for full sun in moist soils.

https://en.wikipedia.org/wiki/Filipendula_rubra

Filipendula rubra

Queen of the Prairie (Filipendula rubra) | Perennial

Filipendula rubra, also known as queen-of-the-prairie, is a species of flowering plant in the family Rosaceae native to the northeastern and central United States and southeastern Canada. It prefers full sun or partial shade and moist soil, but tolerates drier soil in a shadier location.

Filipendula rubra 'Venusta' ('Magnifica')

Filipendula ulmaria, commonly known as meadowsweet or mead wort, is a perennial herbaceous plant in the family Rosaceae that grows in damp meadows. It is native throughout most of Europe and Western Asia.

https://en.wikipedia.org/wiki/Filipendula_ulmaria

Filipendula ulmaria 'Aurea'

Filipendula ulmaria 'Flore Pleno' is a perennial herbaceous meadowsweet prized for its sweet, almond-like fragrance and summer flowering. It typically reaches about 1.2 m tall with a spread near 0.6 m. Plant in full sun where soil remains moist to wet; it tolerates sandy, loamy or clay soils. Flowering in the UK occurs from June to August.

Meadowsweet 'Flore Pleno' (Filipendula ulmaria) is a perennial that flowers June to August and gives a sweet, almond-like fragrance.

Filipendula ulmaria 'Flore Pleno'

Meadowsweet 'Flore Pleno' (Filipendula ulmaria)

Filipendula ulmaria 'Variegata'

Geum 'Borisii' of gardens is a perennial Geum cultivated for summer flowering. It blooms in the UK from June to August. Plant in full sun or partial shade on moist, well-drained soil; it is classed H5 (hardy) under the UK scale. It suits borders, rock gardens and cottage gardens.

Avens 'Borisii' (Geum 'Borisii' of gardens) is a hardy perennial that flowers June to August and prefers full sun or partial shade on moist, well-drained.

Geum (L.), commonly called avens, is a flowering plant genus of about 60 accepted species and hybrids, within the Rosaceae family in the order of Rosales, in the major group angiosperms. The species of the genus are widely distributed across Europe, Asia, North and South America, Africa, and New Zealand.

Geum 'Borisii' of gardens

Avens 'Borisii' (Geum 'Borisii' of gardens) | For Borders

Geum quellyon, commonly called scarlet avens, Chilean avens or Grecian rose, is a perennial herb in the family Rosaceae. It is native to the central and southern regions of Chile.

https://en.wikipedia.org/wiki/Geum_quellyon

Geum chiloense

Geum chiloense 'Lady Stratheden' is a perennial herb in the genus Geum that produces a summer display of flowers from June to August. It suits positions in full sun or partial shade and prefers well-drained soil that remains moist. Originating from Chile, it is cultivated for its seasonal flowering habit. Plant in sites where soil retains moisture without waterlogging.

Geum chiloense 'Lady Stratheden' is a Chilean perennial Geum that flowers from June to August and prefers full sun or partial shade on moist, well-drained.

Geum chiloense 'Lady Stratheden'

Geum chiloense 'Lady Stratheden' | Summer Geum

Geum chiloense 'Mrs Bradshaw' is a perennial herb in the genus Geum, notable for summer flowering. It originates from Chile and produces blooms in a range of warm hues. It prefers full sun or partial shade and a well-drained soil that remains moist through the growing season.

Geum chiloense 'Mrs Bradshaw' is a Chilean perennial herb that flowers from June to August and prefers full sun or partial shade in moist, well-drained.

Geum chiloense 'Mrs Bradshaw'

Geum chiloense 'Mrs Bradshaw' | Summer Flowers

Geum rivale 'Lionel Cox' is a perennial Geum that prefers moist to wet soils and forms a low clump to about 0.3 m. It flowers in the UK from June to August. Best sited in full sun on sandy, loamy or clay soils that remain moist or seasonally wet. Fully hardy (H7) and suited to a wide range of temperate gardens.

Geum rivale 'Lionel Cox' is a perennial reaching 0.3 m that flowers June to August and prefers full sun with moist or wet soil.

https://en.wikipedia.org/wiki/Geum_rivale

Geum rivale 'Lionel Cox'

Water Avens (Geum rivale 'Lionel Cox') | Moist Borders

Potentilla 'Congo' is a cultivated selection within the genus Potentilla, a group commonly called cinquefoils. It provides an extended summer display, flowering from June to September. As with many Potentilla, the flowers are typically yellow and sit above the foliage on short stems. The cultivar is used for its long flowering run rather than for foliage colour or showy fruit.

Potentilla 'Congo' is a Potentilla cultivar that flowers from June to September and suits sunny, free-draining spots.

Potentilla is a genus containing over 500 species of annual, biennial and perennial herbaceous flowering plants in the rose family, Rosaceae.

Potentilla 'Congo'

Cinquefoil (Potentilla 'Congo') | Summer Bloom

Potentilla 'Etna' is a compact, deciduous shrub with bright yellow flowers that bloom from late spring to autumn. It has a bushy habit and finely divided, dark green foliage.

Potentilla 'Etna'

Potentilla 'Flamenco' is a shrub in the Potentilla genus that produces abundant yellow flowers from June to September. It prefers full sun to partial shade and establishes best in well-drained, neutral to alkaline soils with moderate moisture. The plant tolerates a sheltered position and is rated H5 for UK hardiness. Fruit are ornamental and should not be eaten; wear gloves and protective equipment when handling.

Cinquefoil 'Flamenco' (Potentilla 'Flamenco') blooms June to September and suits full sun to partial shade in well-drained neutral to alkaline soil.

Potentilla 'Flamenco'

Cinquefoil 'Flamenco' (Potentilla 'Flamenco')

Potentilla 'Gloire de Nancy' is a cultivar of Potentilla that provides a prolonged display of flowers from June to September. It belongs to the Potentilla genus in the rose family and carries the genus' typical small cinquefoil blooms, usually yellow. The plant follows the leaf and flower patterns seen across Potentilla species and suits mixed-planting schemes.

Potentilla 'Gloire de Nancy' flowers from June to September and is a Potentilla cultivar for summer borders and containers.

Potentilla 'Gloire de Nancy'

Cinquefoil (Potentilla 'Gloire de Nancy') | June–Sep Bloom

Potentilla 'Hamlet' is a cultivar of Potentilla (family Rosaceae) valued for an extended summer flowering display. It carries the genus's cinquefoil blooms, typically yellow, and flowers from June to September. Leaves display the palmate leaflet pattern seen across Potentilla species. The long-season blossom makes it useful where sustained summer colour is required.

Potentilla 'Hamlet' is a cinquefoil that flowers from June to September with the genus's characteristic yellow blooms.

Potentilla 'Hamlet'

Cinquefoil (Potentilla 'Hamlet') | June–Sept blooms

Potentilla 'Monsieur Rouillard' is a named cultivar of Potentilla in the rose family, Rosaceae. It flowers in the UK from June to September. Specific details of habit and site preference vary between cultivars, so check the plant label or supplier notes for precise care. Its flowering window makes it useful for summer-to-early-autumn colour in planting plans.

Potentilla 'Monsieur Rouillard' is a Potentilla cultivar in the rose family that flowers in the UK from June to September.

Potentilla 'Monsieur Rouillard'

Potentilla 'Monsieur Rouillard' | Potentilla cultivar

Potentilla 'Volcan' is a shrub Potentilla that carries a long summer display, flowering from June to September. It performs best in full sun to partial shade on well-drained soil with moderate moisture. Hardy to H5, it will tolerate both sheltered and exposed situations. Use it in borders, as ground cover or in rock gardens where sustained summer flowering is wanted.

Cinquefoil 'Volcan' (Potentilla 'Volcan') flowers from June to September and suits well-drained soil in full sun to partial shade.

Potentilla 'Volcan'

Cinquefoil 'Volcan' (Potentilla 'Volcan') | Summer Shrub

Potentilla 'Yellow Queen' is a shrub that produces a steady display of yellow flowers through the summer. It prefers full sun or light shade and performs best in well-drained soil kept reasonably moist. Give it a sheltered position and it will tolerate typical UK winters (H5). Use where a low, flowering shrub is needed in borders, rock gardens or as ground cover.

Yellow Queen Cinquefoil (Potentilla 'Yellow Queen') produces yellow flowers from June to September and suits sunny, well-drained borders and rock gardens.

Potentilla 'Yellow Queen'

Yellow Queen Cinquefoil (Potentilla 'Yellow Queen')

Potentilla atrosanguinea is a shrub notable for its dark crimson flowers. It flowers from June to September. Native to the Himalaya and Tibet, it prefers well-drained loamy or sandy soil in full sun or partial shade. The fruit are ornamental and should not be eaten; wear gloves when handling.

Dark Crimson Cinquefoil Potentilla atrosanguinea produces dark-red summer flowers (June–September) on shrubs suited to well-drained borders, rock and.

https://en.wikipedia.org/wiki/Potentilla_atrosanguinea

Potentilla atrosanguinea

Dark Crimson Cinquefoil (Potentilla atrosanguinea) | Borders

Potentilla delavayana is a species within the genus Potentilla (family Rosaceae) that flowers in the UK from June to September. It sits in a group of mainly herbaceous plants whose blooms are commonly yellow and whose leaves are often palmate. The Potentilla genus occurs widely across the northern continents. Fruit on Potentilla species is typically dry and inedible.

Potentilla delavayana blooms from June to September and belongs to the Potentilla genus in the rose family.

Potentilla delavayana

Potentilla delavayana | Summer-flowering Potentilla

Potentilla nepalensis 'Master Floris' is a perennial cinquefoil that bears cup-shaped, five-petalled flowers in shades from cherry red to deep pink. It forms a low mound of divided, strawberry-like leaves and grows to about 0.6 m. Flowering runs from June to September, providing a summer display. Native to Nepal, it favours sunny positions.

Nepal Cinquefoil (Potentilla nepalensis 'Master Floris') produces cherry-red to deep-pink flowers June to September and forms low mounds to 0.6 m in full.

https://en.wikipedia.org/wiki/Potentilla_nepalensis

Potentilla nepalensis 'Master Floris'

Nepal Cinquefoil (Potentilla nepalensis 'Master Floris')

Potentilla recta, the sulphur cinquefoil or rough-fruited cinquefoil, is a species of cinquefoil. It is native to Eurasia but it is present in North America as an introduced species, ranging through almost the entire continent except the northernmost part of Canada and Alaska.

https://en.wikipedia.org/wiki/Potentilla_recta

Potentilla recta macrantha

Poterium is a genus of flowering plants placed in the family Rosaceae. Members of this genus produce flowers in the UK summer, with blooms occurring from June to August. Species differ in form and cultivation needs, so check the plant name and supplier notes before buying. Select specimens with healthy crowns and clear labelling of the species for best results.

Poterium is a genus in the Rosaceae that flowers from June to August; check species-specific growing notes before planting.

https://en.wikipedia.org/wiki/Sanguisorba

Sanguisorba is a genus of flowering plants in the family Rosaceae native to the temperate regions of the Northern Hemisphere. The common name is burnet.

Poterium

Poterium | Genus profile and flowering period

Sanguisorba canadensis is a herbaceous perennial notable for its creamy-white, cylindrical flower spikes. It is native to North America and typically reaches about 1.2 m. Flowering occurs from June to August. Plants prefer moist but well-drained soils and a sunny position.

White burnet (Sanguisorba canadensis) is a herbaceous perennial that reaches about 1.2 m and flowers from June to August.

https://en.wikipedia.org/wiki/Sanguisorba_canadensis

Sanguisorba canadensis

White Burnet (Sanguisorba canadensis) | Moist Borders

Sanguisorba obtusa is a perennial bearing wiry stems topped with bottle‑brush flower heads from June to August. It typically reaches about 1.0 m and carries grey‑green foliage beneath the flowering stems. The plant prefers full sun and suits soils ranging from sandy to heavy clay provided they remain moist to wet. Flower heads are bright pink, adding vertical texture across summer.

Japanese Burnet (Sanguisorba obtusa) reaches about 1.0 m with bright pink bottle‑brush flowers from June to August and prefers full sun and moist soil.

https://en.wikipedia.org/wiki/Sanguisorba_obtusa

Sanguisorba obtusa

Japanese Burnet (Sanguisorba obtusa) | Moist Borders

Sanguisorba officinalis 'Rubra' is a herbaceous perennial in the genus Sanguisorba, growing to around 1.0 m. It flowers in the UK from June to August. The plant tolerates a wide range of soils from sandy to clay and will take wet ground as well as moist, well-drained sites. It is suited to borders, wildflower gardens and naturalistic plantings.

Great Burnet (Sanguisorba officinalis 'Rubra') is a 1.0 m herbaceous perennial for full sun that flowers from June to August and suits borders and.

https://en.wikipedia.org/wiki/Sanguisorba_officinalis

Sanguisorba officinalis 'Rubra'

Great Burnet (Sanguisorba officinalis 'Rubra')

Spiraea aruncus is a species in the genus Spiraea best known for its steady flowering period from May to July. It is recorded taxonomically in family Q46299. The concentrated late-spring to mid-summer bloom window defines its seasonal value in a planting scheme. Plan management around that flowering period to preserve the display.

Spiraea aruncus flowers from May to July and belongs to the genus Spiraea (family Q46299).

https://en.wikipedia.org/wiki/Aruncus_sylvester

Aruncus is a genus of clump-forming herbaceous perennial plants in the family Rosaceae. Botanical opinion of the number of species differs, with from one to four species accepted.