If you want a bold, tropical look that is truly winter-hardy, Hibiscus × 'Summerific(R) Edge of Night' delivers. This hardy hibiscus (Hardy Hibiscus 'Summerific(R) Edge of Night') forms a strong, mounded clump with dramatic jet-black foliage and huge bubblegum-pink flowers veined in deeper pink. Bloom begins in mid to late summer and keeps the show going when many perennials are fading.
Give it full sun for the darkest foliage and the most flowers, though it will also grow in part shade. Choose rich soil that holds moisture but still drains; steady watering during heat helps keep leaves lush and flowers large. Mulch to conserve moisture and protect the crown, especially the first winter after planting.
Expect a mature size around 36-48 inches tall and about 48-60 inches wide, so leave room for its big presence. It is normal for hardy hibiscus to emerge late in spring; mark the spot so you do not disturb it while waiting for new shoots.
Care is simple: cut back old stems in early spring before growth resumes, and remove any winter-damaged wood. Deadheading is optional, but you can tidy spent blooms for a cleaner look. Use this variety as a focal point in borders, a centerpiece in beds, or near patios where you can enjoy the flowers up close.