Summerific Holy Grail Hibiscus love the sun and need moist, well-drained soil. Keeping these plants watered will result in larger flowers and lush foliage. Deadheading will improve the appearance of the plant, but is not necessary for continued bloom.
Noted for its dark foliage and long blooming season, Hibiscus ‘Holy Grail’ (Rose Mallow) is a compact, well-branched, herbaceous perennial with extremely large, deep red flowers, up to 9 in. across (22 cm). Summerific ‘Holy Grail’ hibiscus (aka rose mallow or Hibiscus moscheutos) from Proven Winners will be one of the true head-turners in your garden or landscape. Just look at the richness and uniqueness of this color scheme: deep red flowers and near-black foliage.
holy grail hibiscus, We called this hardy hibiscus "the holy grail" from its inception because we knew we had something special. There's a whole lot to love about this plant, beginning with its incredible dark, near-black foliage of beautiful, oval shaped leaves. Rich, deep red flowers are enormous at 8-9" across. SUMMERIFIC HOLY GRAIL is a purple-leaved selection of hardy hibiscus with sturdy, upright canes that produce large, deep red blooms (8-9" in diameter) in late summer. Mature plants will reach up to 4.5' tall with a 5' spread.
holy grail hibiscus, Some susceptibility to leaf spots, blights, rusts and canker. A North American native, 'Holy Grail' brings massive, tropical-looking flowers to gardens as far north as zone 4. Though it emerges a little later in spring than other perennials, its fast-growing nature ensures it quickly establishes itself, with up to an inch of new growth a day. Proven Winners is constantly working to refine and improve their offerings for the North American garden and to the nursery industry in using the best in new plant and production materials. This is truly a special Hardy Hibiscus. Incredibly dark, near-black foliage hold 8-9” deep red flowers.
