Spiraea is a deciduous shrub in the Rosaceae that produces dense clusters of flowers in late spring and early summer, flowering from May to July. Many forms spread by suckers and develop a multi-stemmed outline. It tolerates a wide range of soils and light levels, from full sun to partial shade. Plants are rated very hardy (H6) for UK conditions.

Deciduous Spiraea flowers from May to July and suits mixed, cottage and wildlife borders in full sun or partial shade.

Spiraea, sometimes spelled spirea in common names, and commonly known as meadowsweets or steeplebushes, is a genus of about 80 to 100 species of shrubs in the family Rosaceae. They are native to the temperate Northern Hemisphere, with the greatest diversity in eastern Asia.

Spiraea

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.

Spiraea aruncus

Spiraea densiflora var. splendens is a deciduous, suckering shrub in the Rosaceae that flowers from May to July. It is native to western North America, including Alberta, British Columbia, California, Idaho, Montana, Oregon, Washington and Wyoming. It suits full sun or partial shade and a wide range of soils provided they are moist but well-drained or well-drained.

Spiraea densiflora var. splendens is a deciduous, suckering shrub flowering May to July, suited to sun or part shade and a wide range of soils.

Spiraea densiflora var. splendens

Dense-flowered Spiraea | Spiraea densiflora var. splendens

Spiraea japonica 'Dark Magic' is a deciduous, multi-stemmed shrub that suckers to form a rounded clump, growing to about 1.5 m. It bears clusters of flowers from May to July. The cultivar prefers full sun and tolerates a wide range of soils while needing moist but well-drained conditions. It suits exposed as well as sheltered spots and is fully hardy in UK conditions (H7).

Spiraea japonica 'Dark Magic' is a deciduous shrub to 1.5 m that flowers May to July and suits sunny, moist but well-drained soils.

Spiraea japonica 'Dark Magic'

Japanese Meadowsweet | Spiraea japonica 'Dark Magic'

Spiraea japonica 'Odessa'PBR is a deciduous shrub in the rose family that carries a long flowering display from May to July. It is multi-stemmed and suckering, forming spreading clumps at the base. It grows well in full sun or partial shade on a wide range of soils and prefers moist but well-drained conditions. The plant is rated H6, meaning it is very hardy in UK gardens.

Spiraea japonica 'Odessa'PBR Japanese Spiraea flowers May to July and suits full sun or partial shade on a wide range of soils.

Spiraea japonica 'Odessa'PBR

Japanese Spiraea | Spiraea japonica 'Odessa'PBR

Spiraea japonica Little Flame ('Minspil04'PBR) is a multi-stemmed, suckering deciduous shrub in the rose family that bears clusters of rosy-pink flowers from May to July. It tolerates a wide range of soils and positions, suiting both exposed and sheltered sites. Plant where its spreading habit can be accommodated, such as the front of a mixed border or in a cottage-garden grouping. The foliage is seasonal and gives structure outside the flowering months.

Spiraea japonica Little Flame ('Minspil04'PBR) is a multi-stemmed spiraea with rosy-pink clusters of flowers from May to July.

Spiraea japonica Little Flame ('Minspil04'PBR)

Japanese Spiraea | Spiraea japonica Little Flame ('Minspil04'PBR)

Spiraea japonica Zen'Spirit Gold ('Minspiz07') is a deciduous, multi-stemmed spiraea with a suckering habit that produces flowers in late spring and early summer. It belongs to the Rosaceae and suits sun or partial shade. Flowering occurs from May to July. The plant establishes on a wide range of soils and tolerates exposed as well as sheltered sites.

Spiraea japonica Zen'Spirit Gold ('Minspiz07') is a deciduous Spiraea shrub flowering May to July, suited to sun or partial shade in a wide range of soils.

Spiraea japonica Zen'Spirit Gold ('Minspiz07')

Spiraea japonica Zen'Spirit Gold ('Minspiz07') | Shrub

Spiraea prunifolia f. simpliciflora is a multi-stemmed, suckering shrub in the Rosaceae that flowers from May to July. Its foliage is deciduous and it performs in full sun to partial shade. It will grow on chalk, clay, loam or sand and prefers moist but well-drained to well-drained soils across acid to alkaline conditions.

Bridalwreath Spirea (Spiraea prunifolia f. simpliciflora) flowers from May to July and thrives in full sun or partial shade on well-drained soils.