Summerific Holy Grail Rose Mallow (Hibiscus 'Summerific Holy Grail')
hy-BIS-kus 'Summerific Holy Grail'

Deciduous Perennial Shrub
 

 
Available May 9
Size Notes Price Availability
#2 gallon Field $25.03
 

Hibiscus 'Holy Grail' is a truly remarkable hardy hibiscus cultivar that boasts massive, velvety-deep red blooms. This eye-catching variety produces dinner plate-sized flowers with gently ruffled, near-black petals that create a dramatic, almost gothic appearance. The dark hue of the blossoms is complemented by the plant's deep burgundy-purple foliage, which further enhances the bold, dramatic contrast. Reaching 3-4 feet tall and 4-6 feet wide, 'Holy Grail' forms a well-branched, bushy habit that makes it an excellent choice as a striking focal point or background plant in the perennial garden. Hardy in USDA Zones 4-9, this rose mallow is able to withstand cold winter temperatures, ensuring reliable performance season after season. The showy, black flowers of 'Holy Grail' open in mid to late summer, creating an unforgettable statement and drawing the eye to this unique hibiscus variety. For gardeners seeking to add a touch of the dramatic and mysterious to their landscape, Hibiscus 'Holy Grail' is an absolute must-have.

 

Plant Data

Mature Size 3 - 4 feet tall. 4 - 6 feet wide.
Sun Exposure Partial Shade - Full Sun
Moisture Tolerance Medium
Zones 4a - 9b (Usually hardy to -30° F)
Tags Attracts Butterflies, Attracts Hummingbirds, Colorful Foliage, Container, Deciduous, Deer Resistant, Extended Bloom Time, Fall Color, Fast Growth Rate, Formal Garden, Foundation, Full Sun, Good for Accents, Good for Borders, Good for Butterfly Garden, Good for Cottage Garden, Good for Mass Planting, Good for Rain Garden, Medium, Nativar, Normal Soil, Partial Shade, Partial Sun, Perennial, Showy Flowers, Tolerant of Moist Soil, Tolerant of Poor Soil, Well-Drained Soil, Woodland Garden
Bloom Period June - August
Flower Color Deep red
 

Rankings

 

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Photos of This with...

Leading Lady Charlize Coreopsis
 
Summerific Holy Grail Rose Mallow, in bloom
Flowers of Summerific Holy Grail Rose Mallow
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Pricing and Availability History

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Limited Availability

We try very hard to source exactly what you’d like, but sometimes growers run out of plants! While this variety is a great deal at the price shown, we know that it has limited availability. If you want the plant even if it might be more expensive, or in a different size or quantity -- after you place your order, just send us a quick note at help@northshoreplantclub.com. Then, we’ll try to get you some version of this from one of our growers. And if we can’t get it from anywhere, of course, we’ll send a refund!


Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.


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No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!