Hibiscus sp.
May be the largest flowered hibiscus on earth! Giant pink blossoms can be as large as dinner plates. Flushes of bloom summer till early fall. Tolerates alkaline soils.
Hardiness: Zone 5
Exposure: Full sun
Size: Height — 5 feet tall; width — 5 feet wide
Bloom time: Summer till early fall
Care: Remove old blossoms & developing seed pods to promote rebloom
For further information:
Moy Grande (Texas Giant Hibiscus)
Perennial Hibiscus–Magnificent Blooms Year After Year