Hydrangeas can be either deciduous or evergreen shrubs, as well as self-clinging vines. Their flowers are typically arranged in clusters that include both smaller, fertile blooms and larger, more ornamental sterile ones. Many varieties also offer notable autumn foliage.

Hydrangea macrophylla 'Hbaspred'

Hydrangea macrophylla 'Heathfield Variety'

Hydrangea macrophylla 'Heinrich Seidel' is a robust shrub that typically reaches a height and width of approximately 1.2 meters. It features elliptic leaves, which are slightly serrated and exhibit a deep green hue. The plant produces large, rounded mophead flowers composed of tightly clustered florets. On acidic soils, the blooms appear purple with a dark blue center, while in alkaline conditions, they develop a rich pink color with a cream center. In the autumn, the flowers transition to a brick red shade.

Hydrangea macrophylla 'Heinrich Seidel' (H)

Hydrangea macrophylla 'Henan'PBR

Hydrangea macrophylla 'Hercule Poirot' (H)

Hydrangea macrophylla 'Hobella' PBR (Hovaria Series) (L) is a compact, deciduous shrub that reaches approximately 1.2 meters in both height and width. It features broad, dark green leaves that provide a lush backdrop throughout the growing season. The plant produces broad flower clusters that appear from summer to autumn. These flowers start as a soft pink, transitioning to green before taking on a red margin as they mature.

Hydrangea macrophylla 'Hobella'PBR (Hovaria Series) (L)

Hydrangea macrophylla 'Hobergine' is a compact, deciduous shrub that typically reaches a height and width of approximately 1.2 meters. It features elliptical, mildly serrated leaves that are a rich mid-green. This variety produces relatively small flower clusters that bloom throughout the summer and extend into autumn. On acidic soils, the flowers appear purple, while they take on a deeper hue in full sun. In contrast, on neutral to alkaline soils, the flowers are rose pink, and they turn red under direct sunlight.

Hydrangea macrophylla 'Hobergine'PBR (Hovaria Series) (H)

Hydrangea macrophylla 'Hokoda'

Hydrangea macrophylla 'Hokolarma'

Hydrangea macrophylla 'Hokomacha'

Hydrangea macrophylla 'Hokomatempta'

Hydrangea macrophylla 'Hokowuha'

This deciduous shrub typically reaches a height of about 100 cm. It features coarsely toothed, dark green leaves and produces mophead flower clusters in shades ranging from pink to violet-purple. Blooming occurs from June to August.

Hydrangea macrophylla 'Holehird Purple' (H)

Hydrangea macrophylla 'Holibel'PBR (Hovaria Series) (H)

Hydrangea macrophylla 'Holstein' (H)

Hydrangea macrophylla 'Homigo'PBR (Hovaria Series) (H)

Hydrangea macrophylla 'Hopaline' (Hovaria Series) (H)

Hydrangea macrophylla 'Hopcorn'PBR (Hovaria Series) (H)

Hydrangea macrophylla 'Horbast'

Hydrangea macrophylla 'Horgeann'PBR

Hydrangea macrophylla 'Horgew'

Hydrangea macrophylla 'Hormei'PBR

Hydrangea macrophylla 'Horpa' (H)

Hydrangea macrophylla 'Horstol'PBR

Hydrangea macrophylla 'Hortdodapi'PBR

Hydrangea macrophylla 'Hortulanus H. Witte' (H)

Hydrangea macrophylla 'Horwes'PBR

Hydrangea macrophylla 'Huakaifugui' (Seduction Series) (H)

Hydrangea macrophylla 'Hörnli' (H)

Hydrangea macrophylla 'Ich10162b'PBR

Hydrangea macrophylla 'Immaculata' (H)

Hydrangea macrophylla 'Inspire'PBR (H)

Hydrangea macrophylla 'Intermezzo' (H)

Hydrangea macrophylla 'Izu-no-hana' is a compact, bushy shrub that typically reaches a height of around 1.5 meters. It features broad leaves with a slightly serrated edge and a rich green hue. The lacecap inflorescences consist of tightly packed small, fertile florets at the center, encircled by larger, widely spaced infertile florets that have pointed petals. Blooming begins in late summer, with flowers appearing blue in acidic soils and pink in alkaline conditions. As autumn approaches, both hues transition to dark pink and green.

Hydrangea macrophylla 'Izu-no-hana' (L/d)

Hydrangea macrophylla 'Izu-no-odoriko' is a bushy shrub that can reach heights of up to 1.5 meters. It features rounded, dark green leaves with a subtle serration along the edges. From mid-summer, it produces lacecap flowers characterized by a compact center of small, fertile florets, encircled by larger, sterile double florets that have pointed petal tips. The flower color varies depending on soil pH: in acidic conditions, they are blue, while in alkaline soils, they turn pink. As winter approaches, both colors transition to shades of pink and green.

Hydrangea macrophylla 'Izu-no-odoriko' (L)

Hydrangea macrophylla 'J.F. McLeod' (H)

Hydrangea macrophylla 'Jinan'

Hydrangea macrophylla 'Joan Rose'

Hydrangea macrophylla 'Jofloma' (H)

A robust, deciduous shrub that reaches approximately 150 cm in height, featuring coarsely serrated dark green leaves. This variety produces rounded, dark blue blooms from late June until September.

Hydrangea macrophylla 'Jomari' (Fireworks Series) (L/d)

Hydrangea macrophylla 'Joseph Banks' (H) is a medium-sized deciduous shrub that can reach heights of up to 2 meters and widths of around 1 meter. It features broad, ovate leaves and produces large flower clusters. In summer, these clusters begin as cream-colored flowers, transitioning to pale pink or pale hyacinth-blue as the season progresses.

Hydrangea macrophylla 'Joseph Banks' (H)

Hydrangea macrophylla 'Julisa' is a deciduous shrub that can reach heights of up to 1.2 meters. It features wide, oval-shaped leaves that exhibit a purplish hue in spring, transitioning to deep green during the summer months and shifting to light red in the fall. In summer, it produces rounded clusters of small, cupped flowers that are bright pink in color.

Hydrangea macrophylla 'Julisa' (H)

Hydrangea macrophylla 'Juno' (L)

Hydrangea macrophylla 'Jōgasaki' is a bushy, deciduous shrub that can reach dimensions of up to 1.5 meters in height and width. It features ovate, glossy leaves that are a deep green. The plant produces broad clusters of flowers that range from pink to lavender-blue, forming flowerheads measuring between 7 and 12 centimeters in diameter. The double ray florets encircle the central fertile flowers, all supported by sturdy, elongated stems.

Hydrangea macrophylla 'Jōgasaki' (L/d)

Hydrangea macrophylla 'Kamosere Arigatou'PBR (H)

Hydrangea macrophylla 'Kamosere Gokigenyo'PBR (H/d)

Hydrangea macrophylla 'Kardinal' (Teller Series) (L) is a bushy, upright deciduous shrub featuring dark green, serrated, ovate leaves. From summer into autumn, it produces an abundance of large lace-cap blooms that range from deep red to purple in acidic soils. In contrast, when cultivated in more neutral or alkaline environments, the flowers will take on a pink hue.

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