
Grow Zone
4 - 9
Mature Height
54
Mature Width
60
Sun / Shade
Full Sun and Part Shade
Bloom Size
need bloom size meta
Tomato Fruit Set
Days To Maturity
Fruit Weight
Soil Tolerance
Normal, loamy and Poor
Moisture
Moist, well-drained and Wet
Description / Hibiscus Summerific® 'Holy Grail' Rose Mallow
Hibiscus Summerific® 'Holy Grail' Rose Mallow is a hardy perennial hibiscus that pairs deep red, 8 to 9 inch flowers with nearly black, oval foliage. Blooming from midsummer into early fall, the saturated red flowers and green calyxes stand out boldly against the dark purple leaves. This upright, fast growing plant reaches about 4.5 feet tall and 5 feet wide, making a dramatic statement each summer.
Use 'Holy Grail' as a focal point in borders and beds, or plant it in bog and rain gardens where consistent moisture is available. Bees and butterflies visit the large blooms. For striking companions, try Agastache, Panicum, Penstemon, and Sedum, which add contrasting textures around its summer show. Part of the Proven Winners® Summerific® collection, this rose mallow is also deer resistant.
Plant in full sun to part shade in moist, well drained, acidic soil; it tolerates soils from poor to fertile. Provide average, consistent moisture throughout the season. Hardy in Zones 4 to 9, rose mallow emerges late in spring, so be patient as new growth appears. Cut the stems back before new growth begins. The combination of deep red flowers and near black foliage sets 'Holy Grail' apart in the summer garden.
Product Details
SKU:
Genus:
Species:
Variety: 'Holy Grail'
Item Form:
Size:
Bloom Color: Dark Red
Foliage Color: BlackPurple
Habit:
Light Requirements: Full SunPart Shade
Moisture Requirements: Moist, well-drained, Wet
Soil Type: Normal, loamy, Poor
Bloom Start:
Bloom End:
Uses: Special Features: Hardiness Zones: 4 - 9
State Shipping Restrictions: GU, HI, PR, VI