With Hydrangea macrophylla 'Eclipse®', you get dramatic, season-long contrast: deep purple to near-black foliage paired with showy mophead flower clusters that shift through soft cream and pink tones before aging to richer cranberry reds. Use it where you want a bold focal point in a foundation bed, mixed border, or large container, and let the dark leaves make nearby greens and silvers look brighter.
Place your plant where it can enjoy gentle light. Morning sun with part shade, or filtered light through the afternoon, helps foliage hold its dark color and keeps blooms from stressing in summer heat. In cooler climates it can handle more sun, but protection from harsh afternoon exposure is still a good idea.
Plant in moist, well-drained soil enriched with organic matter, and water deeply during establishment. Keep the root zone evenly moist rather than soggy, and use a layer of mulch to moderate soil temperature and reduce drought swings. Like other bigleaf hydrangeas, bloom color can vary with soil conditions, so expect some natural variation from season to season.
For pruning, aim for light shaping only, and avoid late-season cuts that remove developing flower buds. Remove winter-damaged stems in spring after new growth shows, and thin or shorten stems as needed earlier in the growing season. In colder areas, a sheltered site and winter mulch can help protect buds and improve flowering reliability.
Mature size is typically about 36-60 inches tall with a similar spread, so give it room to fill out without crowding. Pair it with plants that appreciate similar moisture and light, and enjoy a distinctive hydrangea that brings both foliage drama and colorful bloom heads to your garden.