Alphabetical Plant Listing

Hydrangea macrophylla 'Amethyst'

Bigleaf Hydrangea 'Amethyst', Mophead Hydrangea 'Amethyst', Hortensia 'Amethyst', Hydrangea macrophylla 'Magical Amethyst', Hydrangea macrophylla 'Hokomathyst', Everlasting Series


Noted for its long-lasting flowers, Hydrangea macrophylla 'Amethyst' is a compact mophead hydrangea with large and bold, rounded flower heads, packed with soft pink or pale violet-blue florets, depending on the soil pH. Blooming from early to late summer, the remarkable blossoms age to reddish pink with lime green markings and last for weeks in their final color, lime green. The foliage is medium to light green with large, glossy, serrated leaves. 'Amethyst' is perfect to create a low hedge and lovely in containers.

  • This deciduous shrub has a round habit, typically growing 2-4 ft. tall (60-120 cm) and 3-4 ft. wide (90-120 cm).
  • A sun to part shade lover, it is best grown in rich, medium moisture, well-drained soils. Full sun is tolerated if constant moisture is provided.
  • No serious pest or disease issues. Watch for bud blight, bacterial wilt, leaf spot and mildew.
  • Perfect from foundation plantings to container plantings. Massed in a sheltered location or as an accent plant. Effective as an hedge and makes excellent cut flowers too!
  • Remove spent flowers to promote new blooms.
  • Blue in acidic soils, the flowers turn pink in alkaline soils. To change their color, add aluminum sulfate to the soil to make the flowers bluer or add lime to the soil to make them pinker. Treatment should occur ahead of time (late fall or early spring).
  • This beautiful deciduous shrub should be pruned after flowering by cutting back the stems to a pair of healthy buds. Prune out weak or winter-damaged stems in early spring.

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Requirements

Hardiness 5 – 9
Heat Zones 6 – 9
Climate Zones 3, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1
Plant Type Shrubs
Plant Family Hydrangeas
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Height 2' – 4' (60cm – 120cm)
Spread 3' – 4' (90cm – 120cm)
Spacing 48" (120cm)
Water Needs Average
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Dried Arrangements, Cut Flowers, Showy
Garden Uses Beds and Borders, Hedges and Screens, Patio and Containers, Small Gardens
Garden Styles City and Courtyard, Informal and Cottage, Traditional Garden

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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 5 – 9
Heat Zones 6 – 9
Climate Zones 3, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1
Plant Type Shrubs
Plant Family Hydrangeas
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Height 2' – 4' (60cm – 120cm)
Spread 3' – 4' (90cm – 120cm)
Spacing 48" (120cm)
Water Needs Average
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Dried Arrangements, Cut Flowers, Showy
Garden Uses Beds and Borders, Hedges and Screens, Patio and Containers, Small Gardens
Garden Styles City and Courtyard, Informal and Cottage, Traditional Garden

Great Plant Combination Ideas with Hydrangeas

Guides with Hydrangeas

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