All media depicts mature plants.

Summerific® 'Holy Grail' Perennial Hibiscus

PERENNIAL

Description

  • Red blooms shine all summer long!
  • Dramatic purple-black foliage stands out in the landscape.
  • Very easy to grow.
  • Ideal specimen plant.
  • Zones 4-9, sun, 4.5' tall x 4.5' wide at maturity. 
Zone 4-9
Light sun
medium

$27.00CAD Each
Buy 3 get $0.30 off each!
Buy 6 get $0.60 off each!
Buy 9 get $1.00 off each!
Buy 12 get $1.50 off each!
Buy 24 get $2.00 off each!
Total
$27.00CAD
Size
More Info on Plant Sizes

Notify Me When Available
View Detailed Plant Information
↓

Plant Spacing

Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:

bush distance

Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:

bush distance zigzag
white plant in hand icon

Hand-picked at our greenhouse

white shipped to door icon

Shipped to your door

Young plant icon

Arrives as young plant

background image

More Information

Description 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. The show begins mid-summer and lasts for weeks beyond, providing a dramatic display of enormous dish-shaped blooms. It looks fabulous with yellow flowering plants like black-eyed Susan or coreopsis. Summerific hibiscus from Proven Winners are herbaceous perennials, so unlike their close cousin rose of Sharon, they die back to the ground in fall and begin each year fresh in spring. They are one of the latest perennials to emerge in spring, but watching them transform from tiny buds to big, healthy plants in a matter of weeks is nothing short of delightful. These are great plants for beginners – anyone, really! Details How To Grow

Did You Know?

10 Native Plants (& Nativars) To Grow This Year

Support pollinators and local wildlife by growing natives. We offer over 200 plants native to North America, and we've compiled a list of our favorites that will happily call your garden home.

Discover More

Customer Reviews

Based on 9 reviews
100%
(9)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
M
Margarita

Beautiful flowers I almost lost it

K
Kimberly

Arrived in beautiful condition! Planted immediately! Cannot wait to see how they blossom!!!

A
A.C. (Georgia)
Hardy and Easy to Grow!

So far, the Holy Grail is being kind to me as I’ve been caring for it during a drought. The sun burned one leaf and it didn’t even complain. In fact, it seems to be ever so kind because it has 3 new buds! I’m very happy with it and will buy it some future company next year.

J
J. (Texas)
Thriving almost a year later!

Last year I left a review for the Holy Grail hibiscus in August. This year I am here to update. They are gorgeous. Unfortunately, I still have not planted them in the ground. The area I intended for them to go is not ready yet. I did upgrade them to a larger pot and they are content in there for now. All 3 of the ones I ordered came back after the winter. I cut them back after the last frost and they started to sprout around April and are packed with buds and starting to bloom. I can only imagine how huge they will get after planted in the ground.

User picture User picture
D
D.F. (Illinois)
Hibiscus

My Holy Grail hibiscus is doing just fine. I will be so glad when it is really big.

12